9.27 Part D

Boltzmann Equation for Entropy:

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9.27 Part D

Postby Humza_Khan_2J » Mon Feb 05, 2018 3:36 pm

Can someone explain why the lower pressure gas has the higher entropy? Is it simply due to a volume difference(which I thought would be offset by the change in T)?

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Re: 9.27 Part D

Postby Johann Park 2B » Mon Feb 05, 2018 3:52 pm

Volume is inversely proportional to the pressure, and with a decrease in volume (increase of pressure), the random movement of gaseous molecules decreases. Thus, the molar entropy decreases. I'm pretty sure that in this case we are regarding T as a constant.

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