Wednesday, November 13, 2013

Nernst Equation


Related the zero current potential to the activities of the participants in the cell reaction

                E_\text{red} = E^{\ominus}_\text{red} - \frac{RT}{zF} \ln\frac{a_\text{Red}}{a_\text{Ox}}     (half-cell reduction potential)
           
               E_\text{cell} = E^{\ominus}_\text{cell} - \frac{RT}{zF} \ln Q     (total cell potential) (Q)- Reaction Quotient


E = \frac{R T}{z F} \ln\frac{[\text{ion outside cell}]}{[\text{ion inside cell}]} = 2.303\frac{R T}{z F} \log_{10}\frac{[\text{ion outside cell}]}{[\text{ion inside cell}]}.

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