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Did you carefully complete the reading assignment?
When the particle of an ideal gas collides with the wall of the
container, it is "reflected" off the wall. By how much does its
momentum change? How long must you wait before it collides with the
same wall? So what is the average force on that wall by that one particle?
You might have noticed that we just "regurgitated" from the
textbook in the last question. Normally, I don't ask you to do
that. But I'm trying to help you"read the math" in the
textbook. There's a long derivation in the text book that starts in
the question above and finishes with something close to the ideal gas law. *In words*
finish the derivation. In other words, read the math carefully and
figure out conceptually what is going on.
Section 20.5 talks about three different velocities of particles in
a gas. Explain in your own words why v_rms > v_avg > v_mp.
If you are one of the 10% that haven't read the syllabus yet, please
do it before the next warmup.
Was there anything that you didn't understand in the reading
assignment? If so, explain.
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