Final Exam 2013 Question 1B

Volume: $\Delta S = nR\ln \frac{V_{2}}{V_{1}}$
Temperature: $\Delta S = nC\ln \frac{T_{2}}{T_{1}}$

garrett_perozich
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Joined: Wed Sep 21, 2016 2:57 pm

Final Exam 2013 Question 1B

For 1B, how would a student know to use Cv for step 2? I understand that you would either use Cv or Cp since the problem told you to treat it as an ideal gas, but what doesn't make sense to me is why you'd use Cv if they volume was not constant (it changes from 3.0 to 3.5L). Also, the pressure isn't constant, as the problem states. So how, exactly, were we supposed to know to use Cv?

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