c
\(Cu _{( s )} + Sn ^{2+}(0.001\, M ) \rightarrow Cu ^{2+}(0.01\, M )+ Sn _{( s )}\)

\(E _{\text {cell }} = E _{\text {cathode }}^{\circ}- E _{\text {anode }}^{\circ}\)

\(=-0.14-(0.34)\)

\(=-0.48 \,V\)

\(E _{\text {cell }} = E _{\text {cell }}^{\circ}-\frac{0.059}{2} \log \frac{\left[ Cu ^{2+}\right]}{\left[ Sn ^{2+}\right]}\)

\(=-0.48-\frac{0.059}{2} \log \frac{0.01}{0.001}\)

\(=-0.509\)

\(\Delta G =- nF E _{\text {cell }}\)

\(=-2 \times 96500 \times(-0.5095)\)

\(=98333.5\, J / mol\)

\(=98.335\, kJ / mol\)

\(=983.35 \times 10^{-1} \,kJ / mol\)

\(\text { Nearest Integer : } 983\)