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Paula Sing 1J
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Joined: Fri Sep 29, 2017 7:06 am


Postby Paula Sing 1J » Fri Mar 16, 2018 11:13 pm

In this question I understand that you can use delta S=nRln(V2/V1) for the first part of the problem, but how are you supposed to know to use S=nRln(T2/T1) instead of delta S=nCln(T2/T1) with the C-value calculated for constant volume?

Jessica Jones 2B
Posts: 80
Joined: Fri Sep 29, 2017 7:04 am

Re: 9.13

Postby Jessica Jones 2B » Sat Mar 17, 2018 2:01 pm

for this equation in terms of temperature you always use Cp or Cv instead of R. All the other ones(Volume and Pressure) are just R.

Christy Zhao 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: 9.13

Postby Christy Zhao 1H » Sat Mar 17, 2018 3:58 pm

Both equations are also given on the constants sheet. And the C value can be Cv at constant volume, or Cp at constant pressure.

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