## Difference in volume and temperature

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

205192823
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Joined: Wed Sep 18, 2019 12:19 am

### Difference in volume and temperature

What is the difference between using the volume and temperature change? If they are both calculating entropy change, does it result in the same value?

Gerald Bernal1I
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Joined: Thu Jul 11, 2019 12:16 am

### Re: Difference in volume and temperature

for which equation?

Daniel Yu 1E
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Joined: Sat Aug 24, 2019 12:15 am

### Re: Difference in volume and temperature

It should result in the same value.

andrewcj 2C
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

### Re: Difference in volume and temperature

You use them in the appropriate situations, so if a system does expansion work at constant temperature, then you probably have to use the volume change equation. If the system changes temperature at constant volume, it's likely you have to use the temperature change equation.