delta S total and delta G






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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 and delta G

Postby Clement Ng » Wed Feb 14, 2018 2:47 am

How are delta S total and delta G related?

Michelle Chernyak 1J
Posts: 33
Joined: Fri Sep 29, 2017 7:06 am

Re: delta S total and delta G

Postby Michelle Chernyak 1J » Wed Feb 14, 2018 9:58 am

delta S total is the total entropy change that occurs during a reaction, while delta G is the total change in gibbs free energy that dictates if the reaction is spontaneous or not. In order to solve for delta G, we can often use delta S in the equation, delta G= deltaH -Tdelta S

Jessica Benitez 1K
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

Re: delta S total and delta G

Postby Jessica Benitez 1K » Sun Feb 18, 2018 3:11 pm

Depending on the signs of delta H and delta S, the sign of delta G will be positive or negative and we can therefore determine if a reaction is spontaneous or not. To guarantee spontaneity we need delta H to be negative and delta S to be positive.


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