## 9.15

$\Delta S = \frac{q_{rev}}{T}$

Hyein Cha 2I
Posts: 103
Joined: Fri Sep 29, 2017 7:05 am
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### 9.15

When do we use delta H instead of q as in delta S = delta H/T? (when the problem doesn't tell you that it's constant pressure)

Do you always use delta H instead of q during phase changes?

Ethan-Van To Dis2L
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

### Re: 9.15

The question states to find the entropy change meaning you would use the delta H of the specific phase change to find the entropy.