Question

The efficiency of a fuel cell is given by

• A. $ΔG/ΔS$
• B. $ΔG/ΔH$
• C. $ΔS/ΔG$
• D. $ΔH/ΔG$

Answer 1

Answer: (B)

$ΔG/ΔH$

Answer 2

Efficiency of a fuel cell $(\phi)= \frac {ΔG}{ΔH}\times 100$
Fuel cells are expected to have an efficiency of $100 \% .$