Cell potential and Gibbs free energy


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juchung7
Posts: 44
Joined: Fri Sep 29, 2017 7:05 am

Cell potential and Gibbs free energy

Postby juchung7 » Sun Mar 04, 2018 9:22 pm

When are you supposed to convert gibbs free energy into cell potential (deltaG=-nFE) instead of just subtracting standard cell potentials?

Rachel Brown 3A
Posts: 52
Joined: Fri Sep 29, 2017 7:06 am

Re: Cell potential and Gibbs free energy

Postby Rachel Brown 3A » Sun Mar 04, 2018 9:43 pm

You do this when you are trying to get the cell potential of a half reaction or you are given cell potentials of half reactions. For some reason, half reaction cell potentials are not state functions so you cannot just add or subtract them.


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