## E equations and when to use them?

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Emily Tam 1k
Posts: 30
Joined: Fri Sep 28, 2018 12:22 am

### E equations and when to use them?

On the constant sheet there are two equations:
E=Eº - RT/nF(lnQ) and E=Eº - 0.05916/n(logQ)

What is the difference between the two? In what situations would i use these equations, or does it not matter?

skyeblee2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

### Re: E equations and when to use them?

They're the same equation rearranged. You'd use one over the other depending on the information your given and the information you need to find.

Megan_Ervin_1F
Posts: 78
Joined: Fri Sep 28, 2018 12:18 am

### Re: E equations and when to use them?

Yes and in the event that you are dealing with a concentration cell the E^o becomes 0

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

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