Evaluation 9.3A

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Mariane Sanchez 1E
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Joined: Fri Sep 29, 2017 7:07 am

Evaluation 9.3A

Postby Mariane Sanchez 1E » Mon Feb 05, 2018 2:59 pm

The question says: "Calculate the change in molar entropy of an ideal gas when it is compressed isothermally to one-third its initial volume." They got an answer of 9.13J/K.mol. Can someone please explain how they got that?

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Joined: Fri Sep 29, 2017 7:04 am

Re: Evaluation 9.3A

Postby mayasinha1B » Mon Feb 05, 2018 3:16 pm

Vi = 1 L
Vf = 3 L

Then use the equation delta S = R ln(Vf/Vi)

Manasvi Paudel 1A
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am

Re: Evaluation 9.3A

Postby Manasvi Paudel 1A » Sat Feb 10, 2018 3:06 pm

When something is compressed isothermally, you use the equation qrev/T!

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