Homework Help: Physics

Posted by Tasha on Sunday, April 20, 2008 at 11:02am.

Three moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 430 to 160 K.
(a) What is the work done by (or done to) the gas? Include the algebraic sign.
J

(b) What is the change in the internal energy of the gas? Include the algebraic sign.
J

Physics - Count Iblis, Sunday, April 20, 2008 at 1:31pm
Do b) first using E = 3/2 N k T. Answer to a) then follows from the fact that the internal energy change is 100% due to work performed.

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