Delta S(total)


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Marni Kahn 1A
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Joined: Thu Jul 25, 2019 12:17 am
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Delta S(total)

Postby Marni Kahn 1A » Tue Feb 11, 2020 8:59 am

In what cases does delta S(total)=0?

Nick Fiorentino 1E
Posts: 102
Joined: Wed Sep 18, 2019 12:16 am

Re: Delta S(total)

Postby Nick Fiorentino 1E » Tue Feb 11, 2020 9:09 am

Since entropy is a state function, Delta S could be equal to zero if you return to your "starting point". So, if you increase the volume of a container containing gas and then compress it to its original volume, delta S would be zero

Brooke Yasuda 2J
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Joined: Sat Jul 20, 2019 12:17 am

Re: Delta S(total)

Postby Brooke Yasuda 2J » Tue Feb 11, 2020 10:49 am

The total entropy change also equals zero in an isothermal reaction. In this case, the q of the surroundings is equal and opposite in sign to the q of the system. So, the entropy change total is zero

Pablo 1K
Posts: 118
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Re: Delta S(total)

Postby Pablo 1K » Tue Feb 11, 2020 11:33 am

if you did some expansion work (I believe if it can be reversed) and then compressed back to your original state then delta s would give you =0.

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