## Equilibrium constant

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

Naana Boateng 1I
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Joined: Fri Sep 29, 2017 7:07 am

### Equilibrium constant

what is the relationship between standard cell potential and equilibrium constant of a reaction.?

Rachel Formaker 1E
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### Re: Equilibrium constant

Because ΔGo= -nFEo = -RTlnK,

-nFEo = -RTlnK

When standard cell potential is positive, K>1

When standard cell potential is negative, K<1

For positive Eo, larger the standard cell potential of a reaction, the larger the equilibrium constant.

Posts: 58
Joined: Fri Sep 29, 2017 7:04 am

### Re: Equilibrium constant

Are Q and K interchangeable?

Evelyn L 1H
Posts: 67
Joined: Fri Sep 29, 2017 7:05 am

### Re: Equilibrium constant

no, K is the equilibrium constant while Q is when the rxn is not at equilibrium

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