Delta S = nC In (T2/T1)

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

Samantha Chung 4I
Posts: 77
Joined: Wed Oct 03, 2018 12:16 am

Delta S = nC In (T2/T1)

In the textbook, the equation for delta S = C In (T2/T1), but in Dr. Lavelle's formula booklet, the equation is S = nC In (T2/T1). Im confused about what equation to use?

juliasloan_4g
Posts: 67
Joined: Fri Sep 28, 2018 12:28 am

Re: Delta S = nC In (T2/T1)

You should use the equation that has the n in it. The other one is assuming that if you have an amount other than 1 mole you will account for this and multiply by that as well

Karishma_1G
Posts: 67
Joined: Fri Sep 28, 2018 12:18 am

Re: Delta S = nC In (T2/T1)

The C in the equation from the textbook is most likely referring to the heat capacity, whereas the C in Dr. Lavelle's equation is the molar heat capacity (that's why you have to multiply by the number of moles)