Question

Mark the false statement.

• A. A salt bridge is used to eliminate liquid junction potential
• B. The Gibbs free energy change, $\rightarrow$ is related with electromotive force $\rightarrow$, as $\rightarrow$
• C. Nernst equation for single electrode potential is $NH_{4}Cl + MgCl_{2}$
• D. The efficiency of a hydrogen oxygen fuel cell is 23%

Answer 1

Answer: (D)

The efficiency of a hydrogen oxygen fuel cell is 23%

Answer 2

Practically only 60-70% efficiency has been attained.