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Re: multi-step reasoning



no one has replied to this?

I think it depends on the gas. Ideal, T is constant. "Real" can warm or
cool. (has something to do with the second virial coefficient.)

http://www2.rhbnc.ac.uk/~uhap027/PH4211/PH4211_files/section3.pdf

bc



Robert Cohen wrote:

Suppose we had two fixed chambers of volume V separated by a stopcock. In
one we place a gas at pressure P and temperature T. The other is evacuated
(P=0). If we turn the stopcock, the gas expands to fill both chambers.
What is the pressure and temperature in the chambers?

This problem always seems to get different answers every time I ask it.
Does the answer depend on making certain assumptions?

____________________________________________
Robert Cohen; rcohen@po-box.esu.edu; 570-422-3428; http://www.esu.edu/~bbq
Physics, East Stroudsburg Univ., E. Stroudsburg, PA 18301

-----Original Message-----
From: Joseph Bellina [mailto:jbellina@SAINTMARYS.EDU]
Sent: Wednesday, August 21, 2002 5:32 PM
To: PHYS-L@lists.nau.edu
Subject: Re: multi-step reasoning


With all do respect, zero pressure does not exist, and zero pressure
difference is not zero pressure...I can't think of a case in which
changing the volume doesn't involve work being done.