## Entropy Change Due to Temperature Change

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

Tamera Scott 1G
Posts: 65
Joined: Fri Sep 28, 2018 12:27 am

### Entropy Change Due to Temperature Change

When finding entropy changes due to a temperature change, I'm still confused as to when we are supposed to use Cv= 3/2R and Cp= 5/2. Can someone explain?

ariana_apopei1K
Posts: 89
Joined: Fri Sep 28, 2018 12:27 am
Been upvoted: 1 time

### Re: Entropy Change Due to Temperature Change

from what I understood we use Cp when pressure is constant and Cv when the volume is constant to find out how much heat has been gained or lost but I'm not sure if you were looking for something more specific about them

Kelsey Warren 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

### Re: Entropy Change Due to Temperature Change

I'm not positive either, but I agree with what she said. Cv is for constant volume and Cp is for constant pressure.

VivianaHF2L
Posts: 29
Joined: Fri Sep 28, 2018 12:20 am

### Re: Entropy Change Due to Temperature Change

SO does this mean that entropy change is the same thing as change in entropy?