## Nernst Equation

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

Ricardo Ruiz Flores 1D
Posts: 29
Joined: Sat Jul 22, 2017 3:00 am

### Nernst Equation

What does the nr variable represent in the Nernst Equation?

Kyle Sheu 1C
Posts: 87
Joined: Fri Jun 23, 2017 11:39 am

### Re: Nernst Equation

nr is essentially the molar coefficient (in this case, the number of moles of e- transferred); nr is unitless

Reference: P. 429

Christy Zhao 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

### Re: Nernst Equation

If you were confused with the subscript, page 571 says, "The subscript r is always the signal that we are using this 'molar' form."

aaron tang 2K
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Joined: Thu Jul 27, 2017 3:01 am

### Re: Nernst Equation

nr is the molar coefficient of the Nernst Equation. It is basically the number of moles of electrons transferred.

Rishi Khettry 1L
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Joined: Fri Sep 29, 2017 7:05 am

### Re: Nernst Equation

Be sure to remember with nr that the unit "mol" isn't incorporated

Jimmy Zhang Dis 1K
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

### Re: Nernst Equation

It is the total amount of electrons transferred. This can be found by combining two half reactions for the redox reactions.

Kevin Ru 1D
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

### Re: Nernst Equation

To find the moles of electrons transferred, you'll want to look at the two balanced half reactions and make sure that the electron change is same in both.