🕷️ Crawler Inspector

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Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 135 (from laksa088)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa135.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://testbook.com/chemistry/brownian-movement\')), getAhrefsUnparsedNoserviceFromURL(\'https://testbook.com/chemistry/brownian-movement\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/testbook.com\/chemistry\/brownian-movement","crawl_time":1775766138,"first_indexed_time":1693559442,"http_code":200,"src_unparsed":"com,testbook!\/chemistry\/brownian-movement s443","src_root_hash":"12665880941046989535","history_drop_reason":null,"meta_title":"Brownian Movement - Explanation, Examples and FAQs","meta_descriptions":["Understand the concept of Brownian Movement, its significance in Chemistry, its effects in colloids and true solutions, and get answers to frequently asked questions."],"attrs_boilerpipe_text":"Have you ever wondered what causes the random zig-zag motion of tiny particles when observed under a high power ultra-microscope? This phenomenon is known as the\nBrownian Movement\nin the field of Chemistry. The movement was named after Robert Brown, who first observed the similar movement of pollen grains in water.\nThe importance of the Brownian movement was later emphasized by Albert Einstein. In his paper, Einstein explained that the motion of the pollen was due to the molecules of water. His theory provided strong evidence for the existence of atoms and molecules.\nThe Brownian movement is a fundamental concept that forms the foundation of the modern atomic theory. It's also the basis of the\nkinetic theory of gases\n. Furthermore, the mathematical models that describe Brownian motion are applied in numerous disciplines, including Mathematics, Physics, Chemistry, and even Economics.\nDefining the Brownian Movement\nAlso known as Brownian motion, the Brownian movement is characterized by the erratic or uncontrolled movement of particles in a fluid. This motion is caused by the constant collision of these particles with other fast-moving molecules.\nIt's worth noting that the random movement of particles is more pronounced in smaller particles, in less viscous liquids, and at higher temperatures. These factors significantly influence the movement of particles in a fluid.\nA common example of Brownian motion is the dispersion of smoke in the air or the spread of perfume scent in a room. These instances demonstrate how particles move randomly in a fluid medium.\nBrownian Movement and Its Effect on Colloids\nThe effect of Brownian motion can be observed in all types of colloidal solutions. This phenomenon provides a clear explanation of the random movement of sol particles, demonstrating that these particles are not static. The main reason for this motion in sol particles is the unequal bombardment of particles, resulting in non-uniform movement due to the particle size difference.\nFurther Reading:\nColloids\nIt's interesting to note that Brownian movement is absent in true solutions. In these solutions, the system is homogeneous, and the bombardment of particles is uniform. In contrast, in colloids, the system is heterogeneous, and the bombardments are non-uniform, resulting in random movement.\nOne of the significant benefits of the Brownian movement is that it keeps sol particles in constant motion. This prevents the particles from settling at the bottom and coagulating. As a result, the stability of a sol is increased.\nBrownian motion is also observed in the plasma of cells, where the particles move randomly without causing the cell plasma to dry up.\nUnderstanding Brownian Movement Through Examples\n1. Why don’t true solutions exhibit Brownian movement?\nAnswer: True solutions have smaller solute particles and a homogeneous system. The uniform bombardment of particles in true solutions doesn't result in Brownian movement.\n2. How does Brownian movement contribute to the stability of colloids?\nAnswer: The random motion of sol particles due to Brownian movement prevents the particles from settling at the bottom, thus preventing coagulation and increasing the stability of the colloid.\n3. Can you provide two examples of Brownian movement?\nAnswer:\n(i) The movement of smoke particles in the air.\n(ii) The movement of particles in cell plasma.","attrs_markdown":"- [English](https:\/\/testbook.com\/chemistry\/brownian-movement)\n- [Get Started](https:\/\/testbook.com\/login?tile=signup \"Sign Up\")\n\n- [Exams](https:\/\/testbook.com\/exams)\n- [SuperCoaching](https:\/\/testbook.com\/super-coaching)\n- [Live Classes FREE](https:\/\/testbook.com\/free-live-classes)\n- [Test Series](https:\/\/testbook.com\/online-test-series)\n- [Previous Year Papers](https:\/\/testbook.com\/previous-year-papers)\n- [Books](https:\/\/link.testbook.com\/e\/books)\n- [Pass]()\n  [Pass](https:\/\/testbook.com\/pass)\n  \n  [Pass Pro](https:\/\/testbook.com\/pass-pro)\n  \n  [Pass Elite](https:\/\/testbook.com\/pass-elite)\n- [Pass](https:\/\/testbook.com\/pass)\n- [Pass Pro](https:\/\/testbook.com\/pass-pro)\n- [Pass Elite](https:\/\/testbook.com\/pass-elite)\n- [Rank Predictor](https:\/\/testbook.com\/rank-predictor)\n- [IAS Preparation](https:\/\/testbook.com\/ias-preparation)\n- [More]()\n  [Free Live Classes](https:\/\/testbook.com\/free-live-classes)  [Free Live Tests & Quizzes](https:\/\/testbook.com\/free-live-tests-and-quizzes)  [Free Quizzes](https:\/\/testbook.com\/free-online-quizzes)  [Previous Year Papers](https:\/\/testbook.com\/previous-year-papers)  [Doubts](https:\/\/testbook.com\/doubts)  [Practice](https:\/\/testbook.com\/practice-questions)  [Refer and Earn](https:\/\/testbook.com\/referrals)  [All Exams](https:\/\/testbook.com\/exams)  [Our Selections](https:\/\/testbook.com\/success-stories)  [Careers](https:\/\/testbook.com\/careers)  [IAS Preparation](https:\/\/testbook.com\/ias-preparation)  [Current Affairs](https:\/\/testbook.com\/current-affairs)  [Global Careers](https:\/\/globalcareers.testbook.com\/)\n- [Practice](https:\/\/testbook.com\/practice-questions)\n- [GK & Current Affairs](https:\/\/testbook.com\/current-affairs\/current-affairs-quiz)\n- [Blog](https:\/\/testbook.com\/blog\/)\n- [Refer & Earn](https:\/\/testbook.com\/referrals)\n  [Our Selections](https:\/\/testbook.com\/success-stories)\n  [Global Careers](https:\/\/globalcareers.testbook.com\/)\n\n[Home](https:\/\/testbook.com\/chemistry\/brownian-movement)  [Chemistry](https:\/\/testbook.com\/chemistry\/chemistry)\n\nBrownian Movement - Explanation, Examples and FAQs\n\nB\n\n# Brownian Movement - Explanation, Examples and FAQs\n[Download as PDF](https:\/\/testbook.com\/login?redirect_url=https%3A%2F%2Ftestbook.com%2Fchemistry%2Fbrownian-movement&referrer=customChildPage-brownian-movement&referrerType=CustomChildPage&referrerPagePath=undefined)\n\n![Brownian Movement - Explanation, Examples and FAQs Exam Preparation](https:\/\/testbook.com\/chemistry\/assets\/img\/banner-bg\/bottom-banner-preparation.svg)\n\nOverview\n\nTest Series\n\nHave you ever wondered what causes the random zig-zag motion of tiny particles when observed under a high power ultra-microscope? This phenomenon is known as the  **Brownian Movement**  in the field of Chemistry. The movement was named after Robert Brown, who first observed the similar movement of pollen grains in water.\n\nThe importance of the Brownian movement was later emphasized by Albert Einstein. In his paper, Einstein explained that the motion of the pollen was due to the molecules of water. His theory provided strong evidence for the existence of atoms and molecules.\n\nThe Brownian movement is a fundamental concept that forms the foundation of the modern atomic theory. It's also the basis of the  [kinetic theory of gases](https:\/\/testbook.com\/physics\/kinetic-theory-of-gases) . Furthermore, the mathematical models that describe Brownian motion are applied in numerous disciplines, including Mathematics, Physics, Chemistry, and even Economics.\n\n## Defining the Brownian Movement\nAlso known as Brownian motion, the Brownian movement is characterized by the erratic or uncontrolled movement of particles in a fluid. This motion is caused by the constant collision of these particles with other fast-moving molecules.\n\nIt's worth noting that the random movement of particles is more pronounced in smaller particles, in less viscous liquids, and at higher temperatures. These factors significantly influence the movement of particles in a fluid.\n\nA common example of Brownian motion is the dispersion of smoke in the air or the spread of perfume scent in a room. These instances demonstrate how particles move randomly in a fluid medium.\n\n[![](https:\/\/cdn.testbook.com\/1764665958011-640X400%20copy.jpg\/1764666702.jpeg) Crack Your Exam with Super Pass Live with India’s Best Teachers and Coaching Get Super Pass Live SuperCoaching Start 2 Days Trial \\| ₹1 Valid for 2 days then ₹599 for 90 days \\*includes recurring payments Start 2 Days Trial \\| ₹1](https:\/\/testbook.com\/super-pass-live-coaching)\n\nWant to know more about this Super Coaching ? [Explore SuperCoaching Now](https:\/\/testbk.co\/1fgve)\n\n## People also like\nPrev\n\nNext\n\n![Goal Card Image](https:\/\/testbook.com\/blog\/wp-content\/uploads\/2026\/02\/1920x1080-f78f5c57.png)\n\nAE & JE - Electrical\n\n₹10901  (57% OFF)\n\n₹4769 (Valid for 6 Months)\n\n[Explore this Supercoaching](https:\/\/testbook.com\/ae-je-electrical-coaching)\n\n![Goal Card Image](https:\/\/blogmedia.testbook.com\/blog\/wp-content\/uploads\/2026\/02\/640x400-4a7ff5f8.jpg)\n\nUGC NET\/SET (Hinglish)\n\n₹26999  (72% OFF)\n\n₹7699 (Valid till June 2026 Exam)\n\n[Explore this Supercoaching](https:\/\/testbook.com\/ugc-net-coaching)\n\n![Goal Card Image](https:\/\/cdn.testbook.com\/1774955983649-640x400.jpg\/1774955984.jpeg)\n\nUPSC PrepLab\n\nStart 2 Days Trial \\| ₹1\n\nValid for 2 days then ₹999 for 30 days\n\n\\*includes recurring payments\n\n[Explore this Supercoaching](https:\/\/testbook.com\/upsc-prep-lab-coaching)\n\n## Brownian Movement and Its Effect on Colloids\nThe effect of Brownian motion can be observed in all types of colloidal solutions. This phenomenon provides a clear explanation of the random movement of sol particles, demonstrating that these particles are not static. The main reason for this motion in sol particles is the unequal bombardment of particles, resulting in non-uniform movement due to the particle size difference.\n\n**Further Reading:**  [Colloids](https:\/\/testbook.com\/chemistry\/colloids)\n\nIt's interesting to note that Brownian movement is absent in true solutions. In these solutions, the system is homogeneous, and the bombardment of particles is uniform. In contrast, in colloids, the system is heterogeneous, and the bombardments are non-uniform, resulting in random movement.\n\nOne of the significant benefits of the Brownian movement is that it keeps sol particles in constant motion. This prevents the particles from settling at the bottom and coagulating. As a result, the stability of a sol is increased.\n\nBrownian motion is also observed in the plasma of cells, where the particles move randomly without causing the cell plasma to dry up.\n\n[![](https:\/\/cdn.testbook.com\/static\/assets\/assets\/img\/media\/signup_desktop.webp)](https:\/\/testbk.co\/1fgwm)\n\n[![Pass pro banner mobile](https:\/\/cdn.testbook.com\/static\/assets\/assets\/img\/media\/result_blocker_3x.webp)](https:\/\/testbk.co\/1g48a)\n\n## Understanding Brownian Movement Through Examples\n1\\. Why don’t true solutions exhibit Brownian movement?\n\nAnswer: True solutions have smaller solute particles and a homogeneous system. The uniform bombardment of particles in true solutions doesn't result in Brownian movement.\n\n2\\. How does Brownian movement contribute to the stability of colloids?\n\nAnswer: The random motion of sol particles due to Brownian movement prevents the particles from settling at the bottom, thus preventing coagulation and increasing the stability of the colloid.\n\n3\\. Can you provide two examples of Brownian movement?\n\nAnswer:\n\n(i) The movement of smoke particles in the air.\n\n(ii) The movement of particles in cell plasma.\n\nMore Articles for Chemistry\n\n- [Understanding Buffer Action: Mechanism and Key Points \\| Testbook](https:\/\/testbook.com\/chemistry\/buffer-action)\n- [Bulk Modulus of Gases - Understanding the Concept and Formula](https:\/\/testbook.com\/chemistry\/bulk-modulus-gases)\n- [Preparation Method and Uses of Bromine Water](https:\/\/testbook.com\/chemistry\/bromine-water-test)\n- [Understanding Calcination: Process, Examples, and Differences from Roasting](https:\/\/testbook.com\/chemistry\/calcination)\n- [Azeotropic Mixture: Types, Examples, Separation, Distillation - Testbook](https:\/\/testbook.com\/chemistry\/azeotropic-mixture)\n- [Understanding Back Bonding: Chemistry Concepts Explained](https:\/\/testbook.com\/chemistry\/back-bonding)\n- [Atomic Structure - Discovery of Subatomic Particles \\| Testbook.com](https:\/\/testbook.com\/chemistry\/atomic-structure)\n- [Understanding the Bronsted-Lowry Theory - Testbook.com](https:\/\/testbook.com\/chemistry\/bronsted-lowry-theory)\n\n## Frequently Asked Questions\n### What is the Brownian movement?\nThe Brownian movement is the random movement of particles in a liquid due to high collisions.\n\n### What is the reason for the Brownian movement?\nUnequal and non-uniform bombardment of particles is the reason for the Brownian movement.\n\n### In which solutions can the Brownian movement be seen?\nThe Brownian movement can be seen in colloidal solutions.\n\nTest Series\n\n![card-icon](https:\/\/cdn.testbook.com\/resources\/production\/test_series\/ca_All_1707493263_All_1737284533.webp)\n\n700\\.6k Users\n\nCurrent Affairs (CA) 2026 Mega Pack for SSC\/Railways\/State Exam Mock Test\n\n472 Total Tests \\| 45 Free Tests\n\nEnglish,Hindi \\+ 8 MoreAvailable in: English, Hindi, Bengali, Marathi, Oria, Telugu, Tamil, Punjabi, Kannada, 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Class 1 2](https:\/\/testbook.com\/gpsc-class-1-2)[KPSC KAS](https:\/\/testbook.com\/kpsc-kas)[TNPSC Group 1](https:\/\/testbook.com\/tnpsc-group-1)[MPPSC Forest Services](https:\/\/testbook.com\/mppsc-forest-service)[UKPSC Lower PCS](https:\/\/testbook.com\/ukpsc-lower-pcs)[FCI Manager](https:\/\/testbook.com\/fci-manager)[FCI Typist](https:\/\/testbook.com\/fci-typist)[CSIR Junior Secretariat Assistant](https:\/\/testbook.com\/csir-junior-secretariat-assistant)[EPFO Personal Assistant](https:\/\/testbook.com\/epfo-personal-assistant)[NEET](https:\/\/testbook.com\/neet)[MHT CET](https:\/\/testbook.com\/mht-cet)[AP EAMCET](https:\/\/testbook.com\/ap-eapcet)[BHEL Engineer Trainee](https:\/\/testbook.com\/bhel-engineer-trainee)[Mahatransco AE](https:\/\/testbook.com\/mahatransco-ae)[PGCIL Diploma Trainee](https:\/\/testbook.com\/pgcil-diploma-trainee)[UPSC IES](https:\/\/testbook.com\/upsc-ies)[TANCET](https:\/\/testbook.com\/tancet)\n\nPrevious Year Papers\n\n[SSC Selection Post Previous Year Papers](https:\/\/testbook.com\/ssc-selection-post\/previous-year-papers)[SSC GD Constable Previous Year Papers](https:\/\/testbook.com\/ssc-gd-constable\/previous-year-papers)[RRB Group D Previous Year Papers](https:\/\/testbook.com\/rrb-group-d\/previous-year-papers)[RPF Constable Previous Year Papers](https:\/\/testbook.com\/rpf-constable\/previous-year-papers)[SSC JE Previous Year Papers](https:\/\/testbook.com\/ssc-je\/previous-year-papers)[CGPSC Previous Year Papers](https:\/\/testbook.com\/cgpsc\/previous-year-papers)[AIIMS CRE Previous Year Papers](https:\/\/testbook.com\/aiims-cre\/previous-year-papers)[EPFO Personal Assistant Previous Year Papers](https:\/\/testbook.com\/epfo-personal-assistant\/previous-year-papers)[FCI Manager Previous Year Papers](https:\/\/testbook.com\/fci-manager\/previous-year-papers)[JKPSC KAS Previous Year Papers](https:\/\/testbook.com\/jkpsc-kas\/previous-year-papers)[OPSC OAS Previous Year Papers](https:\/\/testbook.com\/opsc-oas\/previous-year-papers)[UPPCS Previous Year Papers](https:\/\/testbook.com\/uppcs\/previous-year-papers)[NEET Previous Year Papers](https:\/\/testbook.com\/neet\/previous-year-papers)[MHT CET Previous Year Papers](https:\/\/testbook.com\/mah-cet-mba\/previous-year-papers)[TANCET Previous Year Papers](https:\/\/testbook.com\/tancet\/previous-year-papers)[AAI ATC Previous Year Papers](https:\/\/testbook.com\/aai-je-atc\/previous-year-papers)[MP Vyapam Sub Engineer Previous Year Papers](https:\/\/testbook.com\/mp-vyapam-sub-engineer\/previous-year-papers)[RSMSSB Junior Engineer Previous Year Papers](https:\/\/testbook.com\/rsmssb-junior-engineer\/previous-year-papers)\n\n[SSC CGL Previous Year Papers](https:\/\/testbook.com\/ssc-cgl-exam\/previous-year-papers)[SSC MTS Previous Year Papers](https:\/\/testbook.com\/ssc-mts\/previous-year-papers)[RRB ALP Previous Year Papers](https:\/\/testbook.com\/rrb-alp\/previous-year-papers)[RPF SI Previous Year Papers](https:\/\/testbook.com\/rpf-si\/previous-year-papers)[APPSC Group 1 Previous Year Papers](https:\/\/testbook.com\/appsc-group-1\/previous-year-papers)[GPSC Class 1 2 Previous Year Papers](https:\/\/testbook.com\/gpsc-class-1-2\/previous-year-papers)[CBSE Assistant Secretary Previous Year Papers](https:\/\/testbook.com\/cbse-assistant-secretary\/previous-year-papers)[FCI Previous Year Papers](https:\/\/testbook.com\/fci\/previous-year-papers)[FCI Watchman Previous Year Papers](https:\/\/testbook.com\/fci-watchman\/previous-year-papers)[Kerala PSC KAS Previous Year Papers](https:\/\/testbook.com\/kerala-psc-kas\/previous-year-papers)[RPSC RAS Previous Year Papers](https:\/\/testbook.com\/rpsc-ras\/previous-year-papers)[WBCS Previous Year Papers](https:\/\/testbook.com\/wbcs\/previous-year-papers)[JEE Main Previous Year Papers](https:\/\/testbook.com\/jee-main\/previous-year-papers)[CAT Previous Year Papers](https:\/\/testbook.com\/cat-exam\/previous-year-papers)[CTET Previous Year Papers](https:\/\/testbook.com\/ctet\/previous-year-papers)[BPSC AE Previous Year Papers](https:\/\/testbook.com\/bpsc-ae\/previous-year-papers)[MPPSC AE Previous Year Papers](https:\/\/testbook.com\/mppsc-ae\/previous-year-papers)[UPPSC AE Previous Year Papers](https:\/\/testbook.com\/uppsc-ae\/previous-year-papers)\n\n[SSC CHSL Previous Year Papers](https:\/\/testbook.com\/ssc-chsl\/previous-year-papers)[SSC CPO Previous Year Papers](https:\/\/testbook.com\/ssc-cpo\/previous-year-papers)[RRB NTPC Previous Year Papers](https:\/\/testbook.com\/rrb-ntpc\/previous-year-papers)[RRB Technician Grade-1 Previous Year Papers](https:\/\/testbook.com\/rrb-technician-grade-1\/previous-year-papers)[BPSC Previous Year Papers](https:\/\/testbook.com\/bpsc-exam\/previous-year-papers)[HPSC HCS Previous Year Papers](https:\/\/testbook.com\/haryana-civil-services\/previous-year-papers)[CBSE Junior Assistant Previous Year Papers](https:\/\/testbook.com\/cbse-junior-assistant\/previous-year-papers)[FCI Grade 3 Previous Year Papers](https:\/\/testbook.com\/fci-grade-3\/previous-year-papers)[FSSAI Personal Assistant Previous Year Papers](https:\/\/testbook.com\/fssai-personal-assistant\/previous-year-papers)[KPSC KAS Previous Year Papers](https:\/\/testbook.com\/kpsc-kas\/previous-year-papers)[TNPSC Group 1 Previous Year Papers](https:\/\/testbook.com\/tnpsc-group-1\/previous-year-papers)[CUET Previous Year Papers](https:\/\/testbook.com\/cuet\/previous-year-papers)[JEE Advance Previous Year Papers](https:\/\/testbook.com\/jee-advanced\/previous-year-papers)[CMAT Previous Year Papers](https:\/\/testbook.com\/cmat-exam\/previous-year-papers)[REET Previous Year Papers](https:\/\/testbook.com\/reet\/previous-year-papers)[ISRO Scientist Previous Year Papers](https:\/\/testbook.com\/isro-scientist\/previous-year-papers)[PGCIL Diploma Trainee Previous Year Papers](https:\/\/testbook.com\/pgcil-diploma-trainee\/previous-year-papers)[UPSC IES Previous Year Papers](https:\/\/testbook.com\/upsc-ies\/previous-year-papers)\n\n[SSC CPO Previous Year Papers](https:\/\/testbook.com\/ssc-cpo\/previous-year-papers)[SSC Stenographer Previous Year Papers](https:\/\/testbook.com\/ssc-stenographer\/previous-year-papers)[RRB Technician Previous Year Papers](https:\/\/testbook.com\/rrb-technician\/previous-year-papers)[RRB JE Previous Year Papers](https:\/\/testbook.com\/rrb-je\/previous-year-papers)[MPSC Prevoius Year Papers](https:\/\/testbook.com\/mpsc-state-service\/previous-year-papers)[AAI Junior Assistant Previous Year Papers](https:\/\/testbook.com\/aai-junior-assistant\/previous-year-papers)[CSIR Junior Secretariat Assistant Previous Year Papers](https:\/\/testbook.com\/csir-junior-secretariat-assistant\/previous-year-papers)[FCI Je Previous Year Papers](https:\/\/testbook.com\/fci-je\/previous-year-papers)[NIELIT Scientist B Previous Year Papers](https:\/\/testbook.com\/nielit-scientist-b\/previous-year-papers)[MPPSC Exam Previous Year Papers](https:\/\/testbook.com\/mppsc-state-service\/previous-year-papers)[TSPSC Group 1 Previous Year Papers](https:\/\/testbook.com\/tspsc-group-1\/previous-year-papers)[CUET PG Previous Year Papers](https:\/\/testbook.com\/cuet-pg\/previous-year-papers)[JEECUP Previous Year Papers](https:\/\/testbook.com\/up-polytechnic-jeecup\/previous-year-papers)[MAH MBA CET Previous Year Papers](https:\/\/testbook.com\/mah-cet-mba\/previous-year-papers)[BHEL Engineer Trainee Previous Year Papers](https:\/\/testbook.com\/bhel-engineer-trainee\/previous-year-papers)[Mahatransco AE Previous Year Papers](https:\/\/testbook.com\/mahatransco-ae\/previous-year-papers)[TSGENCO AE Previous Year Papers](https:\/\/testbook.com\/tsgenco-ae\/previous-year-papers)\n\nSyllabus\n\n[SSC CGL Syllabus](https:\/\/testbook.com\/ssc-cgl-exam\/syllabus)[SSC MTS Syllabus](https:\/\/testbook.com\/ssc-mts\/syllabus-exam-pattern)[RRB NTPC Syllabus](https:\/\/testbook.com\/rrb-ntpc\/syllabus)[SSC JE Syllabus](https:\/\/testbook.com\/ssc-je\/syllabus)[JEE Main Syllabus](https:\/\/testbook.com\/jee-main\/syllabus)[NIFT Syllabus](https:\/\/testbook.com\/nift-exam\/syllabus)[AAI Junior Assistant Syllabus](https:\/\/testbook.com\/aai-junior-assistant\/syllabus-exam-pattern)[CSIR Junior Secretariat Assistant Syllabus](https:\/\/testbook.com\/csir-junior-secretariat-assistant\/syllabus-exam-pattern)[FCI Syllabus](https:\/\/testbook.com\/fci\/syllabus)[FCI Stenographer Syllabus](https:\/\/testbook.com\/fci-stenographer\/syllabus-exam-pattern)[NIELIT Scientist B Syllabus](https:\/\/testbook.com\/nielit-scientist-b\/syllabus-exam-pattern)[AAI ATC Syllabus](https:\/\/testbook.com\/aai-je-atc\/syllabus-exam-pattern)[BPSC AE Syllabus](https:\/\/testbook.com\/bpsc-ae\/syllabus-exam-pattern)[RSMSSB Junior Engineer Syllabus](https:\/\/testbook.com\/rsmssb-junior-engineer\/syllabus-exam-pattern)[CUET Accountancy Book Keeping Syllabus](https:\/\/testbook.com\/cuet\/accountancy-book-keeping-syllabus)[CUET Ba Syllabus](https:\/\/testbook.com\/cuet\/ba-syllabus-exam-pattern)[CUET Business Economics Syllabus](https:\/\/testbook.com\/cuet\/business-economics-syllabus)[CUET Computer Science Syllabus](https:\/\/testbook.com\/cuet\/computer-science-syllabus)[CUET Environmental Studies Syllabus](https:\/\/testbook.com\/cuet\/environmental-studies-syllabus)[CUET Commerce Syllabus](https:\/\/testbook.com\/cuet\/commerce-syllabus)[CUET Hindi Syllabus](https:\/\/testbook.com\/cuet\/hindi-syllabus-exam-pattern)[CUET Malayalam Syllabus](https:\/\/testbook.com\/cuet\/malayalam-syllabus-exam-pattern)[CUET Physical Education Syllabus](https:\/\/testbook.com\/cuet\/physical-education-syllabus)[CUET Sanskrit Syllabus](https:\/\/testbook.com\/cuet\/sanskrit-syllabus)[BPSC Exam Syllabus](https:\/\/testbook.com\/bpsc-exam\/syllabus-exam-pattern)[JKPSC KAS Syllabus](https:\/\/testbook.com\/jkpsc-kas\/syllabus-exam-pattern)[OPSC OAS Syllabus](https:\/\/testbook.com\/opsc-oas\/syllabus-exam-pattern)[WBCS Exam Syllabus](https:\/\/testbook.com\/wbcs\/syllabus-exam-pattern)[TSPSC Group 1 Syllabus](https:\/\/testbook.com\/tspsc-group-1\/syllabus-exam-pattern)[BPSC Exam Syllabus](https:\/\/testbook.com\/bpsc-exam\/syllabus-exam-pattern)\n\n[SSC CHSL Syllabus](https:\/\/testbook.com\/ssc-chsl\/syllabus)[SSC Stenographer Syllabus](https:\/\/testbook.com\/ssc-stenographer\/syllabus-exam-pattern)[RRB Technician Syllabus](https:\/\/testbook.com\/rrb-technician\/syllabus-exam-pattern)[RRB JE Syllabus](https:\/\/testbook.com\/rrb-je\/syllabus)[JEE Advanced Syllabus](https:\/\/testbook.com\/jee-advanced\/syllabus)[WB JEE Syllabus](https:\/\/testbook.com\/wb-jee\/syllabus-exam-pattern)[AIIMS CRE Syllabus](https:\/\/testbook.com\/aiims-cre\/syllabus-exam-pattern)[CSIR Npl Technician Syllabus](https:\/\/testbook.com\/csir-npl-technician\/syllabus-exam-pattern)[FCI Grade 3 Syllabus](https:\/\/testbook.com\/fci-grade-3\/syllabus-exam-pattern)[FCI Typist Syllabus](https:\/\/testbook.com\/fci-typist\/syllabus-exam-pattern)[CUET Maths Syllabus](https:\/\/testbook.com\/cuet\/mathematics-syllabus)[BHEL Engineer Trainee Syllabus](https:\/\/testbook.com\/bhel-engineer-trainee\/salary-job-profile)[MP Vyapam Sub Engineer Syllabus](https:\/\/testbook.com\/mp-vyapam-sub-engineer\/syllabus-exam-pattern)[TSGENCO AE Syllabus](https:\/\/testbook.com\/tsgenco-ae\/syllabus-exam-pattern)[CUET Agriculture Syllabus](https:\/\/testbook.com\/cuet\/agriculture-syllabus)[CUET BCA Syllabus](https:\/\/testbook.com\/cuet\/bca-syllabus-exam-pattern)[CUET Business Studies Syllabus](https:\/\/testbook.com\/cuet\/business-studies-syllabus)[CUET Engineering Graphics Syllabus](https:\/\/testbook.com\/cuet\/engineering-graphics-syllabus)[CUET Fine Arts Syllabus](https:\/\/testbook.com\/cuet\/fine-arts-syllabus)[CUET Geography Syllabus](https:\/\/testbook.com\/cuet\/geography-syllabus)[CUET History Syllabus](https:\/\/testbook.com\/cuet\/history-syllabus)[CUET Marathi Syllabus](https:\/\/testbook.com\/cuet\/marathi-syllabus-exam-pattern)[CUET Political Science Syllabus](https:\/\/testbook.com\/cuet\/political-science-syllabus)[CUET Sociology Syllabus](https:\/\/testbook.com\/cuet\/sociology-syllabus)[CGPSC Syllabus](https:\/\/testbook.com\/cgpsc\/syllabus)[Kerala PSC KAS Syllabus](https:\/\/testbook.com\/kerala-psc-kas\/syllabus-exam-pattern)[RPSC RAS Syllabus](https:\/\/testbook.com\/rpsc-ras\/syllabus)[HPPSC HPAS Syllabus](https:\/\/testbook.com\/hppsc-hpas\/syllabus-exam-pattern)[UKPSC Upper PCS Syllabus](https:\/\/testbook.com\/ukpsc-combined-upper-subordinate-service\/syllabus-exam-pattern)[CGPSC Syllabus](https:\/\/testbook.com\/cgpsc\/syllabus)\n\n[SSC CPO Syllabus](https:\/\/testbook.com\/ssc-cpo\/syllabus)[RRB Group D Syllabus](https:\/\/testbook.com\/rrb-group-d\/syllabus)[RPF Constable Syllabus](https:\/\/testbook.com\/rpf-constable\/syllabus-exam-pattern)[CUET Syllabus](https:\/\/testbook.com\/cuet\/exam-syllabus)[JEECUP Syllabus](https:\/\/testbook.com\/up-polytechnic-jeecup\/syllabus-exam-pattern)[GUJCET Syllabus](https:\/\/testbook.com\/gujcet\/syllabus)[CBSE Assistant Secretary Syllabus](https:\/\/testbook.com\/cbse-assistant-secretary\/syllabus-exam-pattern)[CWC Junior Superintendent Syllabus](https:\/\/testbook.com\/cwc-junior-superintendent\/syllabus-exam-pattern)[FCI Je Syllabus](https:\/\/testbook.com\/fci-je\/syllabus-exam-pattern)[FCI Watchman Syllabus](https:\/\/testbook.com\/fci-watchman\/syllabus-exam-pattern)[CUET Physics Syllabus](https:\/\/testbook.com\/cuet\/physics-syllabus)[Mahagenco Technician Syllabus](https:\/\/testbook.com\/mahagenco-technician\/syllabus-exam-pattern)[MPPSC AE Syllabus](https:\/\/testbook.com\/mppsc-ae\/syllabus-exam-pattern)[UPPSC AE Syllabus](https:\/\/testbook.com\/uppsc-ae\/syllabus)[CUET Anthropology Syllabus](https:\/\/testbook.com\/cuet\/anthropology-syllabus)[CUET Bengali Syllabus](https:\/\/testbook.com\/cuet\/bengali-syllabus-exam-pattern)[CUET Chemistry Syllabus](https:\/\/testbook.com\/cuet\/chemistry-syllabus)[CUET English Syllabus](https:\/\/testbook.com\/cuet\/english-syllabus-exam-pattern)[CUET French Syllabus](https:\/\/testbook.com\/cuet\/french-syllabus-exam-pattern)[CUET German Syllabus](https:\/\/testbook.com\/cuet\/german-syllabus-exam-pattern)[CUET Home Science Syllabus](https:\/\/testbook.com\/cuet\/home-science-syllabus)[CUET Mass Media Syllabus](https:\/\/testbook.com\/cuet\/mass-media-syllabus)[CUET Psychology Syllabus](https:\/\/testbook.com\/cuet\/psychology-syllabus)[CUET Teaching Aptitude Syllabus](https:\/\/testbook.com\/cuet\/teaching-aptitude-syllabus)[GPSC Class 1 2 Syllabus](https:\/\/testbook.com\/gpsc-class-1-2\/syllabus-exam-pattern)[KPSC KAS Syllabus](https:\/\/testbook.com\/kpsc-kas\/syllabus-exam-pattern)[TNPSC Group 1 Syllabus](https:\/\/testbook.com\/tnpsc-group-1\/syllabus-exam-pattern)[MPPSC Forest Services Syllabus](https:\/\/testbook.com\/mppsc-forest-service\/syllabus-exam-pattern)[UKPSC Lower PCS Syllabus](https:\/\/testbook.com\/ukpsc-lower-pcs\/syllabus-exam-pattern)\n\n[SSC GD Constable Syllabus](https:\/\/testbook.com\/ssc-gd-constable\/syllabus-exam-pattern)[RRB ALP Syllabus](https:\/\/testbook.com\/rrb-alp\/syllabus-exam-pattern)[RPF SI Syllabus](https:\/\/testbook.com\/rpf-si\/syllabus-exam-pattern)[NEET Syllabus](https:\/\/testbook.com\/neet\/syllabus)[MHT CET Syllabus](https:\/\/testbook.com\/mht-cet\/syllabus)[CUET Commerce Syllabus](https:\/\/testbook.com\/cuet\/commerce-syllabus)[CBSE Junior Assistant Syllabus](https:\/\/testbook.com\/cbse-junior-assistant\/syllabus-exam-pattern)[EPFO Personal Assistant Syllabus](https:\/\/testbook.com\/epfo-personal-assistant\/syllabus-exam-pattern)[FCI Manager Syllabus](https:\/\/testbook.com\/fci-manager\/syllabus-exam-pattern)[FSSAI Personal Assistant Syllabus](https:\/\/testbook.com\/fssai-personal-assistant\/syllabus-exam-pattern)[CUET Biology Syllabus](https:\/\/testbook.com\/cuet\/biology-syllabus)[BMC JE Syllabus](https:\/\/testbook.com\/bmc-je\/syllabus-exam-pattern)[PGCIL Diploma Trainee Syllabus](https:\/\/testbook.com\/pgcil-diploma-trainee\/syllabus-exam-pattern)[UPSC IES Syllabus](https:\/\/testbook.com\/upsc-ies\/syllabus)[CUET Assamese Syllabus](https:\/\/testbook.com\/cuet\/assamese-syllabus-exam-pattern)[CUET Bsc Syllabus](https:\/\/testbook.com\/cuet\/bsc-syllabus-exam-pattern)[CUET Commerce Syllabus](https:\/\/testbook.com\/cuet\/commerce-syllabus)[CUET Entrepreneurship Syllabus](https:\/\/testbook.com\/cuet\/entrepreneurship-syllabus)[CUET General Test Syllabus](https:\/\/testbook.com\/cuet\/general-test-syllabus)[CUET Gujarati Syllabus](https:\/\/testbook.com\/cuet\/gujarati-syllabus-exam-pattern)[CUET Legal Studies Syllabus](https:\/\/testbook.com\/cuet\/legal-studies-syllabus)[CUET Odia Syllabus](https:\/\/testbook.com\/cuet\/odia-syllabus-exam-pattern)[CUET Punjabi Syllabus](https:\/\/testbook.com\/cuet\/punjabi-syllabus-exam-pattern)[APPSC Group 1 Syllabus](https:\/\/testbook.com\/appsc-group-1\/syllabus-exam-pattern)[HPSC HCS Syllabus](https:\/\/testbook.com\/haryana-civil-services\/syllabus-exam-pattern)[MPPSC Exam Syllabus](https:\/\/testbook.com\/mppsc-state-service\/syllabus-exam-pattern)[UPPCS Exam Syllabus](https:\/\/testbook.com\/uppcs\/syllabus-exam-pattern)[MPSC Rajyaseva Syllabus](https:\/\/testbook.com\/mpsc-state-service\/syllabus-exam-pattern)[APPSC Group 1 Syllabus](https:\/\/testbook.com\/appsc-group-1\/syllabus-exam-pattern)\n\nBoard Exams\n\n[Haryana Board](https:\/\/testbook.com\/hbse-class-12th)[Gujarat Board](https:\/\/testbook.com\/gseb-class-12)[Maharashtra Board](https:\/\/testbook.com\/maharashtra-hsc-exam)[Telangana Board](https:\/\/testbook.com\/ts-intermediate)\n\n[AP Board](https:\/\/testbook.com\/ap-inter-2nd-year)[ICSE](https:\/\/testbook.com\/isc-class-12)[Madhya Pradesh Board](https:\/\/testbook.com\/mp-board-12th)[Uttar Pradesh Board](https:\/\/testbook.com\/up-board-class-12)\n\n[Bihar Board](https:\/\/testbook.com\/bihar-board-12th)[Jharkhand Board](https:\/\/testbook.com\/jac-class-12)[Punjab Board](https:\/\/testbook.com\/pseb-class-12)[West Bengal Board](https:\/\/testbook.com\/wbchse-class-12)\n\n[CBSE](https:\/\/testbook.com\/cbse-class-12)[Karnataka Board](https:\/\/testbook.com\/karnataka-2nd-puc)[Rajasthan Board](https:\/\/testbook.com\/rbse-class-12)\n\nCoaching\n\n[SSC CGL Coaching](https:\/\/testbook.com\/ssc-cgl-coaching)[SSC GD Constable Coaching](https:\/\/testbook.com\/ssc-gd-coaching)[RRB ALP Coaching](https:\/\/testbook.com\/rrb-alp-coaching)[RPF SI Coaching](https:\/\/testbook.com\/rpf-constable-and-si-coaching)\n\n[SSC CHSL Coaching](https:\/\/testbook.com\/ssc-chsl-coaching)[SSC CPO Coaching](https:\/\/testbook.com\/ssc-cpo-coaching)[RRB NTPC Coaching](https:\/\/testbook.com\/rrb-ntpc1-coaching)[SSC JE Coaching](https:\/\/testbook.com\/ssc-je-civil-2025-coaching)\n\n[SSC CPO Coaching](https:\/\/testbook.com\/ssc-cpo-coaching)[SSC Stenographer Coaching](https:\/\/testbook.com\/ssc-stenographer-coaching)[RRB Technician Grade 1 Coaching](https:\/\/testbook.com\/rrb-technician-grade-1-signal-coaching)[RRB JE Coaching](https:\/\/testbook.com\/rrb-je-civil-engineering-coaching)\n\n[SSC MTS Coaching](https:\/\/testbook.com\/ssc-mts-coaching)[RRB Group D Coaching](https:\/\/testbook.com\/rrb-groupd-coaching)[RPF Constable Coaching](https:\/\/testbook.com\/rpf-constable-and-si-coaching)\n\nEligibility\n\n[SSC CGL Eligibility](https:\/\/testbook.com\/ssc-cgl-exam\/eligibility-criteria)[SSC GD Constable Eligibility](https:\/\/testbook.com\/ssc-gd-constable\/eligibility-criteria)[RRB ALP 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Ltd.\n\nD- 1, Vyapar Marg,   \nNoida Sector 3, Noida,  \n Uttar Pradesh, India - 201301\n\n[\\[email protected\\]](https:\/\/testbook.com\/cdn-cgi\/l\/email-protection#80f3f5f0f0eff2f4c0f4e5f3f4e2efefebaee3efed)\n\nToll Free:[1800 203 0577](tel:18002030577)\n\nOffice Hours: 10 AM to 7 PM (all 7 days)\n\nCompany\n\n[About us](https:\/\/testbook.com\/about-us)\n\n[Careers We are hiring](https:\/\/testbook.com\/careers)\n\n[Teach Online on Testbook](https:\/\/testbook.com\/teach)[Media](https:\/\/testbook.com\/news)[Sitemap](https:\/\/testbook.com\/sitemap)\n\nProducts\n\n[Test Series](https:\/\/testbook.com\/online-test-series)[Live Tests and Quizzes](https:\/\/testbook.com\/free-live-tests-and-quizzes)[Testbook Pass](https:\/\/testbook.com\/pass)[Online Videos](https:\/\/testbook.com\/free-live-classes)[Practice](https:\/\/testbook.com\/practice-questions)[Live Classes](https:\/\/testbook.com\/free-live-classes)[Blog](https:\/\/testbook.com\/blog\/)[Refer & Earn](https:\/\/testbook.com\/referrals)[Books](https:\/\/testbook.com\/promos\/mock-test-book.html) [Exam Calendar](https:\/\/testbook.com\/government-exam-calendar) [GK & CA](https:\/\/testbook.com\/current-affairs\/current-affairs-quiz) [Teacher Training Program](https:\/\/testbook.com\/teachers-training-program)[Doubts](https:\/\/testbook.com\/doubts)[Hire from SkillAcademy](https:\/\/testbook.com\/promos\/skillacademy-hire-from-us.html)\n\nOur App\n\n[![app-store](https:\/\/testbook.com\/angular\/assets\/img\/template-img\/appstore.svg)](https:\/\/link.testbook.com\/iosAppStore)[![play-store](https:\/\/testbook.com\/angular\/assets\/img\/template-img\/playstore.svg)](https:\/\/testbook.app.link\/4D2CxmX4r6)\n\nFollow us on\n\nCopyright © 2014-2024 Testbook Edu Solutions Pvt. Ltd.: All rights reserved\n\n[User Policy](https:\/\/testbook.com\/acceptable-use-policy)[Terms](https:\/\/testbook.com\/terms-of-service)[Privacy](https:\/\/testbook.com\/privacy-policy)","attrs_readable_markdown":"Have you ever wondered what causes the random zig-zag motion of tiny particles when observed under a high power ultra-microscope? This phenomenon is known as the  **Brownian Movement**  in the field of Chemistry. The movement was named after Robert Brown, who first observed the similar movement of pollen grains in water.\n\nThe importance of the Brownian movement was later emphasized by Albert Einstein. In his paper, Einstein explained that the motion of the pollen was due to the molecules of water. His theory provided strong evidence for the existence of atoms and molecules.\n\nThe Brownian movement is a fundamental concept that forms the foundation of the modern atomic theory. It's also the basis of the  [kinetic theory of gases](https:\/\/testbook.com\/physics\/kinetic-theory-of-gases) . Furthermore, the mathematical models that describe Brownian motion are applied in numerous disciplines, including Mathematics, Physics, Chemistry, and even Economics.\n\n## Defining the Brownian Movement\nAlso known as Brownian motion, the Brownian movement is characterized by the erratic or uncontrolled movement of particles in a fluid. This motion is caused by the constant collision of these particles with other fast-moving molecules.\n\nIt's worth noting that the random movement of particles is more pronounced in smaller particles, in less viscous liquids, and at higher temperatures. These factors significantly influence the movement of particles in a fluid.\n\nA common example of Brownian motion is the dispersion of smoke in the air or the spread of perfume scent in a room. These instances demonstrate how particles move randomly in a fluid medium.\n\n## Brownian Movement and Its Effect on Colloids\nThe effect of Brownian motion can be observed in all types of colloidal solutions. This phenomenon provides a clear explanation of the random movement of sol particles, demonstrating that these particles are not static. The main reason for this motion in sol particles is the unequal bombardment of particles, resulting in non-uniform movement due to the particle size difference.\n\n**Further Reading:**  [Colloids](https:\/\/testbook.com\/chemistry\/colloids)\n\nIt's interesting to note that Brownian movement is absent in true solutions. In these solutions, the system is homogeneous, and the bombardment of particles is uniform. In contrast, in colloids, the system is heterogeneous, and the bombardments are non-uniform, resulting in random movement.\n\nOne of the significant benefits of the Brownian movement is that it keeps sol particles in constant motion. This prevents the particles from settling at the bottom and coagulating. As a result, the stability of a sol is increased.\n\nBrownian motion is also observed in the plasma of cells, where the particles move randomly without causing the cell plasma to dry up.\n\n## Understanding Brownian Movement Through Examples\n1\\. Why don’t true solutions exhibit Brownian movement?\n\nAnswer: True solutions have smaller solute particles and a homogeneous system. The uniform bombardment of particles in true solutions doesn't result in Brownian movement.\n\n2\\. How does Brownian movement contribute to the stability of colloids?\n\nAnswer: The random motion of sol particles due to Brownian movement prevents the particles from settling at the bottom, thus preventing coagulation and increasing the stability of the colloid.\n\n3\\. Can you provide two examples of Brownian movement?\n\nAnswer:\n\n(i) The movement of smoke particles in the air.\n\n(ii) The movement of particles in cell plasma.","meta_canonical":null}

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Boilerpipe Text	Have you ever wondered what causes the random zig-zag motion of tiny particles when observed under a high power ultra-microscope? This phenomenon is known as the Brownian Movement in the field of Chemistry. The movement was named after Robert Brown, who first observed the similar movement of pollen grains in water. The importance of the Brownian movement was later emphasized by Albert Einstein. In his paper, Einstein explained that the motion of the pollen was due to the molecules of water. His theory provided strong evidence for the existence of atoms and molecules. The Brownian movement is a fundamental concept that forms the foundation of the modern atomic theory. It's also the basis of the kinetic theory of gases . Furthermore, the mathematical models that describe Brownian motion are applied in numerous disciplines, including Mathematics, Physics, Chemistry, and even Economics. Defining the Brownian Movement Also known as Brownian motion, the Brownian movement is characterized by the erratic or uncontrolled movement of particles in a fluid. This motion is caused by the constant collision of these particles with other fast-moving molecules. It's worth noting that the random movement of particles is more pronounced in smaller particles, in less viscous liquids, and at higher temperatures. These factors significantly influence the movement of particles in a fluid. A common example of Brownian motion is the dispersion of smoke in the air or the spread of perfume scent in a room. These instances demonstrate how particles move randomly in a fluid medium. Brownian Movement and Its Effect on Colloids The effect of Brownian motion can be observed in all types of colloidal solutions. This phenomenon provides a clear explanation of the random movement of sol particles, demonstrating that these particles are not static. The main reason for this motion in sol particles is the unequal bombardment of particles, resulting in non-uniform movement due to the particle size difference. Further Reading: Colloids It's interesting to note that Brownian movement is absent in true solutions. In these solutions, the system is homogeneous, and the bombardment of particles is uniform. In contrast, in colloids, the system is heterogeneous, and the bombardments are non-uniform, resulting in random movement. One of the significant benefits of the Brownian movement is that it keeps sol particles in constant motion. This prevents the particles from settling at the bottom and coagulating. As a result, the stability of a sol is increased. Brownian motion is also observed in the plasma of cells, where the particles move randomly without causing the cell plasma to dry up. Understanding Brownian Movement Through Examples 1. Why don’t true solutions exhibit Brownian movement? Answer: True solutions have smaller solute particles and a homogeneous system. The uniform bombardment of particles in true solutions doesn't result in Brownian movement. 2. How does Brownian movement contribute to the stability of colloids? Answer: The random motion of sol particles due to Brownian movement prevents the particles from settling at the bottom, thus preventing coagulation and increasing the stability of the colloid. 3. Can you provide two examples of Brownian movement? Answer: (i) The movement of smoke particles in the air. (ii) The movement of particles in cell plasma.
Markdown	- [English](https://testbook.com/chemistry/brownian-movement) - [Get Started](https://testbook.com/login?tile=signup "Sign Up") - [Exams](https://testbook.com/exams) - [SuperCoaching](https://testbook.com/super-coaching) - [Live Classes FREE](https://testbook.com/free-live-classes) - [Test Series](https://testbook.com/online-test-series) - [Previous Year Papers](https://testbook.com/previous-year-papers) - [Books](https://link.testbook.com/e/books) - [Pass]() [Pass](https://testbook.com/pass) [Pass Pro](https://testbook.com/pass-pro) [Pass Elite](https://testbook.com/pass-elite) - [Pass](https://testbook.com/pass) - [Pass Pro](https://testbook.com/pass-pro) - [Pass Elite](https://testbook.com/pass-elite) - [Rank Predictor](https://testbook.com/rank-predictor) - [IAS Preparation](https://testbook.com/ias-preparation) - [More]() [Free Live Classes](https://testbook.com/free-live-classes) [Free Live Tests & Quizzes](https://testbook.com/free-live-tests-and-quizzes) [Free Quizzes](https://testbook.com/free-online-quizzes) [Previous Year Papers](https://testbook.com/previous-year-papers) [Doubts](https://testbook.com/doubts) [Practice](https://testbook.com/practice-questions) [Refer and Earn](https://testbook.com/referrals) [All Exams](https://testbook.com/exams) [Our Selections](https://testbook.com/success-stories) [Careers](https://testbook.com/careers) [IAS Preparation](https://testbook.com/ias-preparation) [Current Affairs](https://testbook.com/current-affairs) [Global Careers](https://globalcareers.testbook.com/) - [Practice](https://testbook.com/practice-questions) - [GK & Current Affairs](https://testbook.com/current-affairs/current-affairs-quiz) - [Blog](https://testbook.com/blog/) - [Refer & Earn](https://testbook.com/referrals) [Our Selections](https://testbook.com/success-stories) [Global Careers](https://globalcareers.testbook.com/) [Home](https://testbook.com/chemistry/brownian-movement) [Chemistry](https://testbook.com/chemistry/chemistry) Brownian Movement - Explanation, Examples and FAQs B # Brownian Movement - Explanation, Examples and FAQs [Download as PDF](https://testbook.com/login?redirect_url=https%3A%2F%2Ftestbook.com%2Fchemistry%2Fbrownian-movement&referrer=customChildPage-brownian-movement&referrerType=CustomChildPage&referrerPagePath=undefined) ![Brownian Movement - Explanation, Examples and FAQs Exam Preparation](https://testbook.com/chemistry/assets/img/banner-bg/bottom-banner-preparation.svg) Overview Test Series Have you ever wondered what causes the random zig-zag motion of tiny particles when observed under a high power ultra-microscope? This phenomenon is known as the Brownian Movement in the field of Chemistry. The movement was named after Robert Brown, who first observed the similar movement of pollen grains in water. The importance of the Brownian movement was later emphasized by Albert Einstein. In his paper, Einstein explained that the motion of the pollen was due to the molecules of water. His theory provided strong evidence for the existence of atoms and molecules. The Brownian movement is a fundamental concept that forms the foundation of the modern atomic theory. It's also the basis of the [kinetic theory of gases](https://testbook.com/physics/kinetic-theory-of-gases) . Furthermore, the mathematical models that describe Brownian motion are applied in numerous disciplines, including Mathematics, Physics, Chemistry, and even Economics. ## Defining the Brownian Movement Also known as Brownian motion, the Brownian movement is characterized by the erratic or uncontrolled movement of particles in a fluid. This motion is caused by the constant collision of these particles with other fast-moving molecules. It's worth noting that the random movement of particles is more pronounced in smaller particles, in less viscous liquids, and at higher temperatures. These factors significantly influence the movement of particles in a fluid. A common example of Brownian motion is the dispersion of smoke in the air or the spread of perfume scent in a room. These instances demonstrate how particles move randomly in a fluid medium. [![](https://cdn.testbook.com/1764665958011-640X400%20copy.jpg/1764666702.jpeg) Crack Your Exam with Super Pass Live with India’s Best Teachers and Coaching Get Super Pass Live SuperCoaching Start 2 Days Trial \\| ₹1 Valid for 2 days then ₹599 for 90 days \includes recurring payments Start 2 Days Trial \\| ₹1](https://testbook.com/super-pass-live-coaching) Want to know more about this Super Coaching ? [Explore SuperCoaching Now](https://testbk.co/1fgve) ## People also like Prev Next ![Goal Card Image](https://testbook.com/blog/wp-content/uploads/2026/02/1920x1080-f78f5c57.png) AE & JE - Electrical ₹10901 (57% OFF) ₹4769 (Valid for 6 Months) [Explore this Supercoaching](https://testbook.com/ae-je-electrical-coaching) ![Goal Card Image](https://blogmedia.testbook.com/blog/wp-content/uploads/2026/02/640x400-4a7ff5f8.jpg) UGC NET/SET (Hinglish) ₹26999 (72% OFF) ₹7699 (Valid till June 2026 Exam) [Explore this Supercoaching](https://testbook.com/ugc-net-coaching) ![Goal Card Image](https://cdn.testbook.com/1774955983649-640x400.jpg/1774955984.jpeg) UPSC PrepLab Start 2 Days Trial \\| ₹1 Valid for 2 days then ₹999 for 30 days \includes recurring payments [Explore this Supercoaching](https://testbook.com/upsc-prep-lab-coaching) ## Brownian Movement and Its Effect on Colloids The effect of Brownian motion can be observed in all types of colloidal solutions. This phenomenon provides a clear explanation of the random movement of sol particles, demonstrating that these particles are not static. The main reason for this motion in sol particles is the unequal bombardment of particles, resulting in non-uniform movement due to the particle size difference. Further Reading: [Colloids](https://testbook.com/chemistry/colloids) It's interesting to note that Brownian movement is absent in true solutions. In these solutions, the system is homogeneous, and the bombardment of particles is uniform. In contrast, in colloids, the system is heterogeneous, and the bombardments are non-uniform, resulting in random movement. One of the significant benefits of the Brownian movement is that it keeps sol particles in constant motion. This prevents the particles from settling at the bottom and coagulating. As a result, the stability of a sol is increased. Brownian motion is also observed in the plasma of cells, where the particles move randomly without causing the cell plasma to dry up. [![](https://cdn.testbook.com/static/assets/assets/img/media/signup_desktop.webp)](https://testbk.co/1fgwm) [![Pass pro banner mobile](https://cdn.testbook.com/static/assets/assets/img/media/result_blocker_3x.webp)](https://testbk.co/1g48a) ## Understanding Brownian Movement Through Examples 1\. Why don’t true solutions exhibit Brownian movement? Answer: True solutions have smaller solute particles and a homogeneous system. The uniform bombardment of particles in true solutions doesn't result in Brownian movement. 2\. How does Brownian movement contribute to the stability of colloids? Answer: The random motion of sol particles due to Brownian movement prevents the particles from settling at the bottom, thus preventing coagulation and increasing the stability of the colloid. 3\. Can you provide two examples of Brownian movement? Answer: (i) The movement of smoke particles in the air. (ii) The movement of particles in cell plasma. More Articles for Chemistry - [Understanding Buffer Action: Mechanism and Key Points \\| Testbook](https://testbook.com/chemistry/buffer-action) - [Bulk Modulus of Gases - Understanding the Concept and Formula](https://testbook.com/chemistry/bulk-modulus-gases) - [Preparation Method and Uses of Bromine Water](https://testbook.com/chemistry/bromine-water-test) - [Understanding Calcination: Process, Examples, and Differences from Roasting](https://testbook.com/chemistry/calcination) - [Azeotropic Mixture: Types, Examples, Separation, Distillation - Testbook](https://testbook.com/chemistry/azeotropic-mixture) - [Understanding Back Bonding: Chemistry Concepts Explained](https://testbook.com/chemistry/back-bonding) - [Atomic Structure - Discovery of Subatomic Particles \\| Testbook.com](https://testbook.com/chemistry/atomic-structure) - [Understanding the Bronsted-Lowry Theory - Testbook.com](https://testbook.com/chemistry/bronsted-lowry-theory) ## Frequently Asked Questions ### What is the Brownian movement? The Brownian movement is the random movement of particles in a liquid due to high collisions. ### What is the reason for the Brownian movement? Unequal and non-uniform bombardment of particles is the reason for the Brownian movement. ### In which solutions can the Brownian movement be seen? The Brownian movement can be seen in colloidal solutions. 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Papers](https://testbook.com/cgpsc/previous-year-papers)[AIIMS CRE Previous Year Papers](https://testbook.com/aiims-cre/previous-year-papers)[EPFO Personal Assistant Previous Year Papers](https://testbook.com/epfo-personal-assistant/previous-year-papers)[FCI Manager Previous Year Papers](https://testbook.com/fci-manager/previous-year-papers)[JKPSC KAS Previous Year Papers](https://testbook.com/jkpsc-kas/previous-year-papers)[OPSC OAS Previous Year Papers](https://testbook.com/opsc-oas/previous-year-papers)[UPPCS Previous Year Papers](https://testbook.com/uppcs/previous-year-papers)[NEET Previous Year Papers](https://testbook.com/neet/previous-year-papers)[MHT CET Previous Year Papers](https://testbook.com/mah-cet-mba/previous-year-papers)[TANCET Previous Year Papers](https://testbook.com/tancet/previous-year-papers)[AAI ATC Previous Year Papers](https://testbook.com/aai-je-atc/previous-year-papers)[MP Vyapam Sub Engineer Previous Year 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Previous Year Papers](https://testbook.com/kerala-psc-kas/previous-year-papers)[RPSC RAS Previous Year Papers](https://testbook.com/rpsc-ras/previous-year-papers)[WBCS Previous Year Papers](https://testbook.com/wbcs/previous-year-papers)[JEE Main Previous Year Papers](https://testbook.com/jee-main/previous-year-papers)[CAT Previous Year Papers](https://testbook.com/cat-exam/previous-year-papers)[CTET Previous Year Papers](https://testbook.com/ctet/previous-year-papers)[BPSC AE Previous Year Papers](https://testbook.com/bpsc-ae/previous-year-papers)[MPPSC AE Previous Year Papers](https://testbook.com/mppsc-ae/previous-year-papers)[UPPSC AE Previous Year Papers](https://testbook.com/uppsc-ae/previous-year-papers) [SSC CHSL Previous Year Papers](https://testbook.com/ssc-chsl/previous-year-papers)[SSC CPO Previous Year Papers](https://testbook.com/ssc-cpo/previous-year-papers)[RRB NTPC Previous Year Papers](https://testbook.com/rrb-ntpc/previous-year-papers)[RRB Technician Grade-1 Previous Year Papers](https://testbook.com/rrb-technician-grade-1/previous-year-papers)[BPSC Previous Year Papers](https://testbook.com/bpsc-exam/previous-year-papers)[HPSC HCS Previous Year Papers](https://testbook.com/haryana-civil-services/previous-year-papers)[CBSE Junior Assistant Previous Year Papers](https://testbook.com/cbse-junior-assistant/previous-year-papers)[FCI Grade 3 Previous Year Papers](https://testbook.com/fci-grade-3/previous-year-papers)[FSSAI Personal Assistant Previous Year Papers](https://testbook.com/fssai-personal-assistant/previous-year-papers)[KPSC KAS Previous Year Papers](https://testbook.com/kpsc-kas/previous-year-papers)[TNPSC Group 1 Previous Year Papers](https://testbook.com/tnpsc-group-1/previous-year-papers)[CUET Previous Year Papers](https://testbook.com/cuet/previous-year-papers)[JEE Advance Previous Year Papers](https://testbook.com/jee-advanced/previous-year-papers)[CMAT Previous Year Papers](https://testbook.com/cmat-exam/previous-year-papers)[REET Previous Year Papers](https://testbook.com/reet/previous-year-papers)[ISRO Scientist Previous Year Papers](https://testbook.com/isro-scientist/previous-year-papers)[PGCIL Diploma Trainee Previous Year Papers](https://testbook.com/pgcil-diploma-trainee/previous-year-papers)[UPSC IES Previous Year Papers](https://testbook.com/upsc-ies/previous-year-papers) [SSC CPO Previous Year Papers](https://testbook.com/ssc-cpo/previous-year-papers)[SSC Stenographer Previous Year Papers](https://testbook.com/ssc-stenographer/previous-year-papers)[RRB Technician Previous Year Papers](https://testbook.com/rrb-technician/previous-year-papers)[RRB JE Previous Year Papers](https://testbook.com/rrb-je/previous-year-papers)[MPSC Prevoius Year Papers](https://testbook.com/mpsc-state-service/previous-year-papers)[AAI Junior Assistant Previous Year Papers](https://testbook.com/aai-junior-assistant/previous-year-papers)[CSIR Junior Secretariat Assistant Previous Year Papers](https://testbook.com/csir-junior-secretariat-assistant/previous-year-papers)[FCI Je Previous Year Papers](https://testbook.com/fci-je/previous-year-papers)[NIELIT Scientist B Previous Year Papers](https://testbook.com/nielit-scientist-b/previous-year-papers)[MPPSC Exam Previous Year Papers](https://testbook.com/mppsc-state-service/previous-year-papers)[TSPSC Group 1 Previous Year Papers](https://testbook.com/tspsc-group-1/previous-year-papers)[CUET PG Previous Year Papers](https://testbook.com/cuet-pg/previous-year-papers)[JEECUP Previous Year Papers](https://testbook.com/up-polytechnic-jeecup/previous-year-papers)[MAH MBA CET Previous Year Papers](https://testbook.com/mah-cet-mba/previous-year-papers)[BHEL Engineer Trainee Previous Year Papers](https://testbook.com/bhel-engineer-trainee/previous-year-papers)[Mahatransco AE Previous Year Papers](https://testbook.com/mahatransco-ae/previous-year-papers)[TSGENCO AE Previous Year Papers](https://testbook.com/tsgenco-ae/previous-year-papers) Syllabus [SSC CGL Syllabus](https://testbook.com/ssc-cgl-exam/syllabus)[SSC MTS Syllabus](https://testbook.com/ssc-mts/syllabus-exam-pattern)[RRB NTPC Syllabus](https://testbook.com/rrb-ntpc/syllabus)[SSC JE Syllabus](https://testbook.com/ssc-je/syllabus)[JEE Main Syllabus](https://testbook.com/jee-main/syllabus)[NIFT Syllabus](https://testbook.com/nift-exam/syllabus)[AAI Junior Assistant Syllabus](https://testbook.com/aai-junior-assistant/syllabus-exam-pattern)[CSIR Junior Secretariat Assistant Syllabus](https://testbook.com/csir-junior-secretariat-assistant/syllabus-exam-pattern)[FCI Syllabus](https://testbook.com/fci/syllabus)[FCI Stenographer Syllabus](https://testbook.com/fci-stenographer/syllabus-exam-pattern)[NIELIT Scientist B Syllabus](https://testbook.com/nielit-scientist-b/syllabus-exam-pattern)[AAI ATC Syllabus](https://testbook.com/aai-je-atc/syllabus-exam-pattern)[BPSC AE Syllabus](https://testbook.com/bpsc-ae/syllabus-exam-pattern)[RSMSSB Junior Engineer Syllabus](https://testbook.com/rsmssb-junior-engineer/syllabus-exam-pattern)[CUET Accountancy Book Keeping Syllabus](https://testbook.com/cuet/accountancy-book-keeping-syllabus)[CUET Ba Syllabus](https://testbook.com/cuet/ba-syllabus-exam-pattern)[CUET Business Economics Syllabus](https://testbook.com/cuet/business-economics-syllabus)[CUET Computer Science Syllabus](https://testbook.com/cuet/computer-science-syllabus)[CUET Environmental Studies Syllabus](https://testbook.com/cuet/environmental-studies-syllabus)[CUET Commerce Syllabus](https://testbook.com/cuet/commerce-syllabus)[CUET Hindi Syllabus](https://testbook.com/cuet/hindi-syllabus-exam-pattern)[CUET Malayalam Syllabus](https://testbook.com/cuet/malayalam-syllabus-exam-pattern)[CUET Physical Education Syllabus](https://testbook.com/cuet/physical-education-syllabus)[CUET Sanskrit Syllabus](https://testbook.com/cuet/sanskrit-syllabus)[BPSC Exam Syllabus](https://testbook.com/bpsc-exam/syllabus-exam-pattern)[JKPSC KAS Syllabus](https://testbook.com/jkpsc-kas/syllabus-exam-pattern)[OPSC OAS Syllabus](https://testbook.com/opsc-oas/syllabus-exam-pattern)[WBCS Exam Syllabus](https://testbook.com/wbcs/syllabus-exam-pattern)[TSPSC Group 1 Syllabus](https://testbook.com/tspsc-group-1/syllabus-exam-pattern)[BPSC Exam Syllabus](https://testbook.com/bpsc-exam/syllabus-exam-pattern) [SSC CHSL Syllabus](https://testbook.com/ssc-chsl/syllabus)[SSC Stenographer Syllabus](https://testbook.com/ssc-stenographer/syllabus-exam-pattern)[RRB Technician Syllabus](https://testbook.com/rrb-technician/syllabus-exam-pattern)[RRB JE Syllabus](https://testbook.com/rrb-je/syllabus)[JEE Advanced Syllabus](https://testbook.com/jee-advanced/syllabus)[WB JEE Syllabus](https://testbook.com/wb-jee/syllabus-exam-pattern)[AIIMS CRE Syllabus](https://testbook.com/aiims-cre/syllabus-exam-pattern)[CSIR Npl Technician Syllabus](https://testbook.com/csir-npl-technician/syllabus-exam-pattern)[FCI Grade 3 Syllabus](https://testbook.com/fci-grade-3/syllabus-exam-pattern)[FCI Typist Syllabus](https://testbook.com/fci-typist/syllabus-exam-pattern)[CUET Maths Syllabus](https://testbook.com/cuet/mathematics-syllabus)[BHEL Engineer Trainee Syllabus](https://testbook.com/bhel-engineer-trainee/salary-job-profile)[MP Vyapam Sub Engineer Syllabus](https://testbook.com/mp-vyapam-sub-engineer/syllabus-exam-pattern)[TSGENCO AE Syllabus](https://testbook.com/tsgenco-ae/syllabus-exam-pattern)[CUET Agriculture Syllabus](https://testbook.com/cuet/agriculture-syllabus)[CUET BCA Syllabus](https://testbook.com/cuet/bca-syllabus-exam-pattern)[CUET Business Studies Syllabus](https://testbook.com/cuet/business-studies-syllabus)[CUET Engineering Graphics Syllabus](https://testbook.com/cuet/engineering-graphics-syllabus)[CUET Fine Arts Syllabus](https://testbook.com/cuet/fine-arts-syllabus)[CUET Geography Syllabus](https://testbook.com/cuet/geography-syllabus)[CUET History Syllabus](https://testbook.com/cuet/history-syllabus)[CUET Marathi Syllabus](https://testbook.com/cuet/marathi-syllabus-exam-pattern)[CUET Political Science Syllabus](https://testbook.com/cuet/political-science-syllabus)[CUET Sociology Syllabus](https://testbook.com/cuet/sociology-syllabus)[CGPSC Syllabus](https://testbook.com/cgpsc/syllabus)[Kerala PSC KAS Syllabus](https://testbook.com/kerala-psc-kas/syllabus-exam-pattern)[RPSC RAS Syllabus](https://testbook.com/rpsc-ras/syllabus)[HPPSC HPAS Syllabus](https://testbook.com/hppsc-hpas/syllabus-exam-pattern)[UKPSC Upper PCS Syllabus](https://testbook.com/ukpsc-combined-upper-subordinate-service/syllabus-exam-pattern)[CGPSC Syllabus](https://testbook.com/cgpsc/syllabus) [SSC CPO Syllabus](https://testbook.com/ssc-cpo/syllabus)[RRB Group D Syllabus](https://testbook.com/rrb-group-d/syllabus)[RPF Constable Syllabus](https://testbook.com/rpf-constable/syllabus-exam-pattern)[CUET Syllabus](https://testbook.com/cuet/exam-syllabus)[JEECUP Syllabus](https://testbook.com/up-polytechnic-jeecup/syllabus-exam-pattern)[GUJCET Syllabus](https://testbook.com/gujcet/syllabus)[CBSE Assistant Secretary Syllabus](https://testbook.com/cbse-assistant-secretary/syllabus-exam-pattern)[CWC Junior Superintendent Syllabus](https://testbook.com/cwc-junior-superintendent/syllabus-exam-pattern)[FCI Je Syllabus](https://testbook.com/fci-je/syllabus-exam-pattern)[FCI Watchman Syllabus](https://testbook.com/fci-watchman/syllabus-exam-pattern)[CUET Physics Syllabus](https://testbook.com/cuet/physics-syllabus)[Mahagenco Technician Syllabus](https://testbook.com/mahagenco-technician/syllabus-exam-pattern)[MPPSC AE Syllabus](https://testbook.com/mppsc-ae/syllabus-exam-pattern)[UPPSC AE Syllabus](https://testbook.com/uppsc-ae/syllabus)[CUET Anthropology Syllabus](https://testbook.com/cuet/anthropology-syllabus)[CUET Bengali Syllabus](https://testbook.com/cuet/bengali-syllabus-exam-pattern)[CUET Chemistry Syllabus](https://testbook.com/cuet/chemistry-syllabus)[CUET English Syllabus](https://testbook.com/cuet/english-syllabus-exam-pattern)[CUET French Syllabus](https://testbook.com/cuet/french-syllabus-exam-pattern)[CUET German Syllabus](https://testbook.com/cuet/german-syllabus-exam-pattern)[CUET Home Science Syllabus](https://testbook.com/cuet/home-science-syllabus)[CUET Mass Media Syllabus](https://testbook.com/cuet/mass-media-syllabus)[CUET Psychology Syllabus](https://testbook.com/cuet/psychology-syllabus)[CUET Teaching Aptitude Syllabus](https://testbook.com/cuet/teaching-aptitude-syllabus)[GPSC Class 1 2 Syllabus](https://testbook.com/gpsc-class-1-2/syllabus-exam-pattern)[KPSC KAS Syllabus](https://testbook.com/kpsc-kas/syllabus-exam-pattern)[TNPSC Group 1 Syllabus](https://testbook.com/tnpsc-group-1/syllabus-exam-pattern)[MPPSC Forest Services Syllabus](https://testbook.com/mppsc-forest-service/syllabus-exam-pattern)[UKPSC Lower PCS Syllabus](https://testbook.com/ukpsc-lower-pcs/syllabus-exam-pattern) [SSC GD Constable Syllabus](https://testbook.com/ssc-gd-constable/syllabus-exam-pattern)[RRB ALP Syllabus](https://testbook.com/rrb-alp/syllabus-exam-pattern)[RPF SI Syllabus](https://testbook.com/rpf-si/syllabus-exam-pattern)[NEET Syllabus](https://testbook.com/neet/syllabus)[MHT CET Syllabus](https://testbook.com/mht-cet/syllabus)[CUET Commerce Syllabus](https://testbook.com/cuet/commerce-syllabus)[CBSE Junior Assistant Syllabus](https://testbook.com/cbse-junior-assistant/syllabus-exam-pattern)[EPFO Personal Assistant Syllabus](https://testbook.com/epfo-personal-assistant/syllabus-exam-pattern)[FCI Manager Syllabus](https://testbook.com/fci-manager/syllabus-exam-pattern)[FSSAI Personal Assistant Syllabus](https://testbook.com/fssai-personal-assistant/syllabus-exam-pattern)[CUET Biology Syllabus](https://testbook.com/cuet/biology-syllabus)[BMC JE Syllabus](https://testbook.com/bmc-je/syllabus-exam-pattern)[PGCIL Diploma Trainee Syllabus](https://testbook.com/pgcil-diploma-trainee/syllabus-exam-pattern)[UPSC IES Syllabus](https://testbook.com/upsc-ies/syllabus)[CUET Assamese Syllabus](https://testbook.com/cuet/assamese-syllabus-exam-pattern)[CUET Bsc Syllabus](https://testbook.com/cuet/bsc-syllabus-exam-pattern)[CUET Commerce Syllabus](https://testbook.com/cuet/commerce-syllabus)[CUET Entrepreneurship Syllabus](https://testbook.com/cuet/entrepreneurship-syllabus)[CUET General Test Syllabus](https://testbook.com/cuet/general-test-syllabus)[CUET Gujarati Syllabus](https://testbook.com/cuet/gujarati-syllabus-exam-pattern)[CUET Legal Studies Syllabus](https://testbook.com/cuet/legal-studies-syllabus)[CUET Odia Syllabus](https://testbook.com/cuet/odia-syllabus-exam-pattern)[CUET Punjabi Syllabus](https://testbook.com/cuet/punjabi-syllabus-exam-pattern)[APPSC Group 1 Syllabus](https://testbook.com/appsc-group-1/syllabus-exam-pattern)[HPSC HCS Syllabus](https://testbook.com/haryana-civil-services/syllabus-exam-pattern)[MPPSC Exam Syllabus](https://testbook.com/mppsc-state-service/syllabus-exam-pattern)[UPPCS Exam Syllabus](https://testbook.com/uppcs/syllabus-exam-pattern)[MPSC Rajyaseva Syllabus](https://testbook.com/mpsc-state-service/syllabus-exam-pattern)[APPSC Group 1 Syllabus](https://testbook.com/appsc-group-1/syllabus-exam-pattern) Board Exams [Haryana Board](https://testbook.com/hbse-class-12th)[Gujarat Board](https://testbook.com/gseb-class-12)[Maharashtra Board](https://testbook.com/maharashtra-hsc-exam)[Telangana Board](https://testbook.com/ts-intermediate) [AP Board](https://testbook.com/ap-inter-2nd-year)[ICSE](https://testbook.com/isc-class-12)[Madhya Pradesh Board](https://testbook.com/mp-board-12th)[Uttar Pradesh Board](https://testbook.com/up-board-class-12) [Bihar Board](https://testbook.com/bihar-board-12th)[Jharkhand Board](https://testbook.com/jac-class-12)[Punjab Board](https://testbook.com/pseb-class-12)[West Bengal Board](https://testbook.com/wbchse-class-12) [CBSE](https://testbook.com/cbse-class-12)[Karnataka Board](https://testbook.com/karnataka-2nd-puc)[Rajasthan Board](https://testbook.com/rbse-class-12) Coaching [SSC CGL Coaching](https://testbook.com/ssc-cgl-coaching)[SSC GD Constable Coaching](https://testbook.com/ssc-gd-coaching)[RRB ALP Coaching](https://testbook.com/rrb-alp-coaching)[RPF SI Coaching](https://testbook.com/rpf-constable-and-si-coaching) [SSC CHSL Coaching](https://testbook.com/ssc-chsl-coaching)[SSC CPO Coaching](https://testbook.com/ssc-cpo-coaching)[RRB NTPC Coaching](https://testbook.com/rrb-ntpc1-coaching)[SSC JE Coaching](https://testbook.com/ssc-je-civil-2025-coaching) [SSC CPO Coaching](https://testbook.com/ssc-cpo-coaching)[SSC Stenographer Coaching](https://testbook.com/ssc-stenographer-coaching)[RRB Technician Grade 1 Coaching](https://testbook.com/rrb-technician-grade-1-signal-coaching)[RRB JE Coaching](https://testbook.com/rrb-je-civil-engineering-coaching) [SSC MTS Coaching](https://testbook.com/ssc-mts-coaching)[RRB Group D Coaching](https://testbook.com/rrb-groupd-coaching)[RPF Constable Coaching](https://testbook.com/rpf-constable-and-si-coaching) Eligibility [SSC CGL Eligibility](https://testbook.com/ssc-cgl-exam/eligibility-criteria)[SSC GD Constable Eligibility](https://testbook.com/ssc-gd-constable/eligibility-criteria)[RRB ALP Eligibility](https://testbook.com/rrb-alp/eligibility-criteria)[RPF SI Eligibility](https://testbook.com/rpf-si/eligibility-criteria)[BPSC Exam Eligibility](https://testbook.com/bpsc-exam/eligibility-criteria)[JKPSC KAS Eligibility](https://testbook.com/jkpsc-kas/eligibility-criteria)[OPSC OAS Eligibility](https://testbook.com/opsc-oas/eligibility-criteria)[WBCS Exam Eligibility](https://testbook.com/wbcs/eligibility-criteria)[TSPSC Group 1 Eligibility](https://testbook.com/tspsc-group-1/eligibility-criteria)[AIIMS CRE Eligibility](https://testbook.com/aiims-cre/eligibility-criteria)[CBSE Junior Assistant Eligibility](https://testbook.com/cbse-junior-assistant/eligibility-criteria)[FCI Assistant Grade 3 Eligibility](https://testbook.com/fci-grade-3/eligibility-criteria)[EPFO Personal Assistant Eligibility](https://testbook.com/epfo-personal-assistant/eligibility-criteria)[NEET Eligibility](https://testbook.com/neet/eligibility-criteria)[MHT CET Eligibility](https://testbook.com/mht-cet/eligibility-criteria)[NCHMCT JEE Eligibility](https://testbook.com/nchmct-jee-exam/eligibility-criteria)[BPSC AE Eligibility](https://testbook.com/bpsc-ae/eligibility-criteria)[MPPSC AE Eligibility](https://testbook.com/mppsc-ae/eligibility-criteria)[TSGENCO AE Eligibility](https://testbook.com/tsgenco-ae/eligibility-criteria)[CMAT Eligibility](https://testbook.com/cmat-exam/eligibility-criteria)[ATMA 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Readable Markdown	Have you ever wondered what causes the random zig-zag motion of tiny particles when observed under a high power ultra-microscope? This phenomenon is known as the Brownian Movement in the field of Chemistry. The movement was named after Robert Brown, who first observed the similar movement of pollen grains in water. The importance of the Brownian movement was later emphasized by Albert Einstein. In his paper, Einstein explained that the motion of the pollen was due to the molecules of water. His theory provided strong evidence for the existence of atoms and molecules. The Brownian movement is a fundamental concept that forms the foundation of the modern atomic theory. It's also the basis of the [kinetic theory of gases](https://testbook.com/physics/kinetic-theory-of-gases) . Furthermore, the mathematical models that describe Brownian motion are applied in numerous disciplines, including Mathematics, Physics, Chemistry, and even Economics. ## Defining the Brownian Movement Also known as Brownian motion, the Brownian movement is characterized by the erratic or uncontrolled movement of particles in a fluid. This motion is caused by the constant collision of these particles with other fast-moving molecules. It's worth noting that the random movement of particles is more pronounced in smaller particles, in less viscous liquids, and at higher temperatures. These factors significantly influence the movement of particles in a fluid. A common example of Brownian motion is the dispersion of smoke in the air or the spread of perfume scent in a room. These instances demonstrate how particles move randomly in a fluid medium. ## Brownian Movement and Its Effect on Colloids The effect of Brownian motion can be observed in all types of colloidal solutions. This phenomenon provides a clear explanation of the random movement of sol particles, demonstrating that these particles are not static. The main reason for this motion in sol particles is the unequal bombardment of particles, resulting in non-uniform movement due to the particle size difference. Further Reading: [Colloids](https://testbook.com/chemistry/colloids) It's interesting to note that Brownian movement is absent in true solutions. In these solutions, the system is homogeneous, and the bombardment of particles is uniform. In contrast, in colloids, the system is heterogeneous, and the bombardments are non-uniform, resulting in random movement. One of the significant benefits of the Brownian movement is that it keeps sol particles in constant motion. This prevents the particles from settling at the bottom and coagulating. As a result, the stability of a sol is increased. Brownian motion is also observed in the plasma of cells, where the particles move randomly without causing the cell plasma to dry up. ## Understanding Brownian Movement Through Examples 1\. Why don’t true solutions exhibit Brownian movement? Answer: True solutions have smaller solute particles and a homogeneous system. The uniform bombardment of particles in true solutions doesn't result in Brownian movement. 2\. How does Brownian movement contribute to the stability of colloids? Answer: The random motion of sol particles due to Brownian movement prevents the particles from settling at the bottom, thus preventing coagulation and increasing the stability of the colloid. 3\. Can you provide two examples of Brownian movement? Answer: (i) The movement of smoke particles in the air. (ii) The movement of particles in cell plasma.
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