## temp units

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

tierra parker 1J
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

### temp units

when you're trying to find the entropy change of an ideal gas reversibly, do you use the equation with temperature in kelvin or celsius?

Hai-Lin Yeh 1J
Posts: 89
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 1 time

### Re: temp units

I believe that the units for entropy/entropy change are always in J.K-1 so the units should be in Kelvin. I haven't seen entropy in Celsius yet.

JT Wechsler 2B
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am

### Re: temp units

I believe that it needs to be calculated in Kelvin.

Lisa Werner 2F
Posts: 72
Joined: Fri Sep 28, 2018 12:17 am

### Re: temp units

You should do the calculations with kelvin.