## 2nd law

isochoric/isometric: $\Delta V = 0$
isothermal: $\Delta T = 0$
isobaric: $\Delta P = 0$

Ekayana Sethi 2K
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### 2nd law

When asked to write the second law of thermodynamics would we explain the delta S for reversible and irreversible processes? and for a reversible does it have to be isothermal reversible for delta Stotal to be 0 or can it simply be just reversible?

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### Re: 2nd law

I don't think we have to do that. I think we can just say that entropy of the universe is greater than 0 for a spontaneous process and deltaS = q/t

Kyung_Jin_Kim_1H
Posts: 53
Joined: Thu Jul 27, 2017 3:00 am

### Re: 2nd law

Seconding the above answer. As long as you show your understanding that entropy is increasing in the universe I think it'll be fine.