Cell Potential

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Suraj Doshi 2G
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Cell Potential

Postby Suraj Doshi 2G » Fri Feb 21, 2020 10:10 pm

If Ecell > E°cell what does this mean in relationship to deltaG. And likewise if Ecell < E°cell, what does this mean to deltaG?

Rita Chen 1B
Posts: 112
Joined: Sat Jul 20, 2019 12:15 am

Re: Cell Potential

Postby Rita Chen 1B » Sat Feb 22, 2020 1:39 am

I was wondering the same thing. I know that if the reaction is spontaneous and delta G is negative, the E must be positive because of Nernst equation. But I am not sure for if E cell < Estandard Cell.

Sofia Ban
Posts: 80
Joined: Fri Sep 28, 2018 12:25 am

Re: Cell Potential

Postby Sofia Ban » Sat Feb 22, 2020 9:36 am

When Ecell>E°cell, you are favoring product formation. AN increase in product concentration leads to an increase in delta G. Based on the equation, an increase in delta G would yield an increase in E cell so they are directly related! As for Ecell<E°cell, you are favoring reactant formation, which then lowers the value of cell potential.

Return to “Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)”

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