A) A salt bridge is used to eliminate liquid junction potential
B) The Gibbs free energy change, \[\Delta G\] is related with electromotive force \[(E)\], as \[\Delta G=-nFE\]
C) Nernst equation for single electrode potential is \[E={{E}^{o}}-\frac{RT}{nF}\,\ln \,{{a}_{{{M}^{n+}}}}\]
D) The efficiency of a hydrogen oxygen fuel cell is 23%
Correct Answer: D
Solution :
Practically only 60-70% efficiency has been attained.
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