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Chemistry
The Nemst equation giving dependence of electrode potential on concentration is
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Q. The Nemst equation giving dependence of electrode potential on concentration is
Uttarkhand PMT
Uttarkhand PMT 2007
A
$E=E^{\circ}+\frac{2.303 R T}{n F} \log \frac{[M]}{\left[M^{n+}\right]}$
B
$E=E^{\circ}+\frac{2.303 R T}{n F} \log \frac{\left[M^{n+}\right]}{[M]}$
C
$E=E^{\circ}-\frac{2.303 F}{n R T} \log \frac{\left[M^{n+}\right]}{[M]}$
D
$E=E^{\circ}-\frac{2.303 R T}{n F} \log \left[M^{n+}\right]$
Solution:
For $Mn^{+}+n e^{-} \rightarrow M$,
$E=E^{\circ}-\frac{2.303 R T}{n F} \log \frac{M}{\left[M^{n+}\right]}$
$=E^{\circ}+\frac{2.303 R T}{n F} \log \frac{\left[M^{n+}\right]}{[M]}$