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Entropy

Posted: Fri Mar 15, 2019 10:25 pm
by Mya Majewski 1L
When is Stotal=0 and Ssurr=-Ssys?

Re: Entropy

Posted: Fri Mar 15, 2019 10:29 pm
by keyaluo4C
Yes.
Stotal=Ssys+Ssurr

Re: Entropy

Posted: Sat Mar 16, 2019 7:28 pm
by Mya Majewski 1L
but when? Is it when an irreversible expansion is occurring that DeltaSTotal=0?

Re: Entropy

Posted: Sat Mar 16, 2019 7:49 pm
by Cienna Henry 1J
According to the 2nd law, n a reversible process the total entropy of a system plus its surrounding is unchanged. delta Suniv = 0