Free Energy and Cell Potential Relationship


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Jarrett Peyrefitte 2K
Posts: 102
Joined: Sat Aug 24, 2019 12:16 am

Free Energy and Cell Potential Relationship

Postby Jarrett Peyrefitte 2K » Sun Mar 01, 2020 10:38 pm

What is the relationship between free energy and cell potential? What is the equation and how is it used?

Rafsan Rana 1A
Posts: 55
Joined: Sat Aug 24, 2019 12:16 am

Re: Free Energy and Cell Potential Relationship

Postby Rafsan Rana 1A » Sun Mar 01, 2020 10:50 pm

They are related through the equation deltaG = -nF(deltaE). G is Gibbs free energy, n is number of electrons transferred, F is faraday constant, and e is cell potential. If cell potential is negative then reaction is spontaneous and if it is positive then reaction is non spontaneous.

Hui Qiao Wu 1I
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am

Re: Free Energy and Cell Potential Relationship

Postby Hui Qiao Wu 1I » Mon Mar 02, 2020 12:08 am

When you're given the value of delta G or cell potential and are asked to find the other, you can use the equation mentioned in the previous comment.

Alexandra Bartolome 2H
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

Re: Free Energy and Cell Potential Relationship

Postby Alexandra Bartolome 2H » Mon Mar 02, 2020 12:33 am

Free energy and cell potential are related through the equation ∆G = - n F E, where ∆G is the change in Gibbs free energy, n is the number of electrons being transferred, F is Faraday's constant, and E is the cell potential.


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