## Difference between 2 delta S equations?

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

JeremyPark14B
Posts: 29
Joined: Fri Sep 28, 2018 12:19 am

### Difference between 2 delta S equations?

In the textbook, the equation for delta S with given temperature change is Delta S = C x ln(T2/T1)

However, in the answer book, the equation Delta S = n x C x ln(T2/T1) is used.

Why is n neglected? Thank you for your time.

Gary Qiao 1D
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

### Re: Difference between 2 delta S equations?

The book is a little inconsistent with their variables, but if you look at the example following the formula, they do use ΔS = nCln(T2/T1). So I'm just guessing they combine the n with C in the book, but both ultimately do use ΔS = nCln(T2/T1).

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