## Finding C in Chapter 9 #19

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

Jennifer_Lam_1A
Posts: 21
Joined: Wed Sep 21, 2016 2:56 pm

### Finding C in Chapter 9 #19

When finding the entropy of step 1, why isn't C multiplied by (5/2) as the question says that it is at constant pressure?

Kendall_Chaffin_3C
Posts: 25
Joined: Wed Sep 21, 2016 2:59 pm

### Re: Finding C in Chapter 9 #19

The gas constant, R, is multiplied by 5/2 to find C at a constant pressure. So you don't need to multiply C by 5/2