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Why are smoke particles used in Brownian motion? What observations of Brownian motion

  • Thread starter binbagsss
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  • #1
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account for the fact that air molecules have a smaller mass?

I have down in my notes someting about if a larger particle was used then the average impulses would tend to 0, could someone please explain this?

thanks alot !
 

Answers and Replies

  • #2


Actually, the smoke particles have very small movements - so the air molecules hitting them must have a smaller mass - if they were bigger than the smoke , then the particles would be displaced by much larger amounts.
kinetic theory states that heat energy involves the vibration of molecules at all temperatures above absolute zero - the Brownian motion observations confirm that warm air molecules are in constant motion(vibration). Hope that helps your question! :smile:

-Earthmosphere
 

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