Delta S total

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Clement Ng
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Joined: Sat Jul 22, 2017 3:00 am
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Delta S total

Postby Clement Ng » Mon Feb 12, 2018 3:05 am

Could someone explain to me how do equilibrium and reversible reactions relevant when answering the question: "Is delta Surrounding = - delta System" ?
This was on Lyndon's practice midterm #3f.

Priyanka Bhakta 1L
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

Re: Delta S total

Postby Priyanka Bhakta 1L » Mon Feb 12, 2018 8:22 am

When a process/reaction is at equilibrium or it is a reversible reaction, delta S total = 0. Thus, at these conditions, delta S sure = - delta S sys. The concept behind this is that in a reversible reaction or a reaction at equilibrium, any changes in entropy of the system or surroundings will be opposed by the other so that they cancel out and delta S total = 0.

Hope that helps!

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