Chemistry - Electrochemistry Question with Solution | TestHub

A salt bridge is used to eliminate liquid junction potential in a galvanic cell

The Gibbs free energy change,$\mathrm{\Delta }\mathrm{G}$is related with electromotive force$\left(\mathrm{E}\right)$, as$\mathrm{\Delta }\mathrm{G}=-\mathrm{n}\mathrm{F}\mathrm{E}$

Nernst equation for single electrode potential is given by$\text{E}={\text{E}}^{\text{o}}-\frac{\text{RT}}{\text{nF}}\text{ln}\left[{\text{M}}^{\text{n}+}\right]$

The maximum theoretical efficiency of a hydrogen oxygen fuel cell is$33\mathrm{\%}$