### finding DeltaG

Posted:

**Thu Feb 28, 2019 8:59 pm**Which equation is the most accurate for finding DeltaG and why?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=141&t=43387

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Posted: **Thu Feb 28, 2019 8:59 pm**

Which equation is the most accurate for finding DeltaG and why?

Posted: **Thu Feb 28, 2019 9:08 pm**

You use different equations for delta g depending on what information you are given in the problem. There are many equations for delta g that can be further substituted, so I don't think there is one "best" equation.

Posted: **Thu Feb 28, 2019 9:14 pm**

There are many equations in which you can use to solve for delta G. It all depends on what information you are given in the context of the question.

Posted: **Thu Feb 28, 2019 11:29 pm**

G=-nFE

G=H-TS

G=-RTlnK

G=-RTlnK + RTlnQ

etc.

You can combine these and switch out variables but it depends what you are given.

G=H-TS

G=-RTlnK

G=-RTlnK + RTlnQ

etc.

You can combine these and switch out variables but it depends what you are given.

Posted: **Fri Mar 01, 2019 12:54 am**

depending on what is given you will use different equations to solve for deltaG.

Posted: **Sat Mar 02, 2019 7:05 pm**

Delta G can be found in many ways. Its just depends on what the question gives you. For example if it gave the delta H, delta S, and Temperature, you would use Delta G= DeltaH- TDeltaS

Posted: **Sat Mar 02, 2019 10:55 pm**

There are multiple methods, but deltaG=deltaH-TdeltaS is a powerful equation. Also, we can do G=-nFE