## 6N.17

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

Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

### 6N.17

Consider the cell Ag(s)|Ag+ (aq, 5.0 mmol/L) ‖ Ag+ (aq, 0.15 mol/L)|Ag(s). Can this cell do work? If so, what is the max work that it can perform (in mole per Ag).

The answer for this question is yes; 8.4 kJ per mole of Ag but I keep getting 17 kJ/mol Ag. I calculated Ecell to be +0.18V by using the Nernst Equation and plugging in 0 for E°cell and .005/5.0 for Q. Then I used wmax = ΔG = -nFE to find the max work.

Can someone help please, thank you!

Connor Ho 1B
Posts: 102
Joined: Sat Aug 17, 2019 12:17 am

### Re: 6N.17

I think Q should be .005/0.15 from the given you wrote out. Maybe that was the error?

Uisa_Manumaleuna_3E
Posts: 60
Joined: Wed Sep 21, 2016 2:56 pm

### Re: 6N.17

Your Q should be .005/.15, giving you the correct E(cell) to plug into the work equation.