1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ideal gas law model

  1. Sep 16, 2015 #1
    1. The problem statement, all variables and given/known data
    My problem is with the last line of the derivation. Usually, we take the rate of change of momentum (force) to be change of momentum divided by the impact time. But this slide of pp showed that the travelling time of the particle in the box is used but not the impact time. Why is it? Appreciate any comment on this. Thank you!

    2. Relevant equations


    3. The attempt at a solution
    I realised that if the impact time is used. The force will be very large since the impact time is likely to be very small.
     

    Attached Files:

  2. jcsd
  3. Sep 16, 2015 #2

    SteamKing

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Do you think the impact time of a gas molecule will be a significant fraction of the travel time of that molecule after it rebounds?
     
  4. Sep 16, 2015 #3
    No, it should be a very small fraction.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Ideal gas law model
  1. Ideal gas law problem (Replies: 13)

  2. Ideal gas law (Replies: 2)

  3. Ideal gas law problem (Replies: 9)

  4. Ideal Gas Law Question (Replies: 2)

  5. Ideal gas law (Replies: 9)

Loading...