d
\(E^{o}_{cell} = E^{o}_{Red}\)(કૅથોડ) \(- E^{o}_{ Red}\) (એનોડ) \( = 0.34 + 0.44 = 0.78\) વૉલ્ટ

નોધ : રિડકશન પોટૅન્શિયલની જેમ ઑક્સિડેશન પોટેન્શિયલનાં મૂલ્યોથી પણ \(E^{o}_{cell}\) શોધી શકાય.

\(E_{cell} = {E^{o}}_{Oxi}\) (એનોડ) \(- {E^{o}}_{ Red}\) (કૅથોડ)

\(\therefore {E_{cell}} = {E^o}_{cell} - \frac{{0.0592}}{n}\log \frac{{[F{e^{ + 2}}]}}{{[C{u^{ + 2}}]}}\)

\(\,\therefore \,\,\,(0.78) = (0.78) - \frac{{0.0592}}{2}\log \frac{x}{{0.01}}\)

\(\therefore \,- 0.0296\log \frac{x}{{0.01}} = 0\)

\(\,\therefore \,\log \frac{x}{{0.01}} = \log \,1\)

\(\,\therefore\,\frac{x}{{0.01}} = 1\,\therefore \,x = 0.01\)