Question

The efficiency of a fuel cell is given by

• A. $\Delta G/\Delta S$
• B. $\Delta G/\Delta H$
• C. $\Delta S/\Delta G$
• D. $\Delta H/\Delta G$

Answer 1

Answer: (B)

Efficiency of a fuel cell $(\varphi )=\frac{\Delta G}{\Delta H}\times 100$
Fuel cells are expected to have an efficiency of $100\%.$