Which equation to use






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Dong Hyun Lee 4E
Posts: 68
Joined: Fri Sep 28, 2018 12:23 am

Which equation to use

Postby Dong Hyun Lee 4E » Sun Feb 24, 2019 10:47 pm

I'm confused on which equation is used in which situation as I know most of the textbook questions use the equation (change in g= change in h - t * change in s) so when do we use G= -RT ln(k)?

Natalie Liu 4I
Posts: 62
Joined: Fri Sep 28, 2018 12:29 am

Re: Which equation to use

Postby Natalie Liu 4I » Sun Feb 24, 2019 10:56 pm

I think most likely when the question includes equilibrium constants or reaction quotients it could be an indicator to use the equation.

Kobe_Wright
Posts: 83
Joined: Fri Sep 28, 2018 12:16 am

Re: Which equation to use

Postby Kobe_Wright » Sun Feb 24, 2019 11:02 pm

Youd use that when they are asking about equilibrium onstants, G=gstandard+RTln(q) when not at equilibrium, G=Gstan+RTln(p) when talking about pressure, and G=-RTln(k) when talking about equilibrium constant.


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