## G=-nFE

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

Angel Ni 2K
Posts: 50
Joined: Sat Jul 22, 2017 3:01 am

### G=-nFE

Why is the "n" in this equation always positive even when there is a negative change in moles?

RyanS2J
Posts: 32
Joined: Thu Jul 27, 2017 3:00 am

### Re: G=-nFE

n is simply referring to the number of moles of electrons transferred. If it were delta n, then a negative change in moles would result in a negative value for delta n.

Tiffany Dao 1A
Posts: 32
Joined: Fri Sep 29, 2017 7:05 am

### Re: G=-nFE

The only factor that changes the sign is E, so that's why knowing E can tell you whether it is spontaneous or not. n is simply the number of moles like in previous equations.

Caroline LaPlaca
Posts: 30
Joined: Sat Jul 22, 2017 3:01 am

### Re: G=-nFE

n just means to write the number of moles!