First slide

Nernst Equation

Question

The Nernst equation giving dependence of electrode potential on concentration is

Easy

A

$E = E^{0} + \frac{2.303 RT}{nF} \log \frac{[M]}{[M^{n +}]}$
B

$E = E^{0} + \frac{2.303 RT}{nF} \log \frac{[M^{n +}]}{[M]}$
C

$E = E^{0} - \frac{2.303 RT}{nF} \log \frac{[M^{n +}]}{[M]}$
D

$E = E^{0} - \frac{2.303 RT}{nF} \log [M^{n +}]$

Solution

By IUPAC convention electrode potential means Standard Reduction potential.
$M_{(aq)}^{+ n} + {ne}^{-} ⇌ M (s)$
$E = E^{o} - \frac{2.303 RT}{nF} \log \frac{M}{M^{+ n}}$
$E = E^{o} + \frac{2.303 RT}{nF} \log \frac{M^{+ n}}{M}$

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