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 \[E=E{}^\circ -\frac{RT}{nF}log{{a}_{{{M}^{n+}}}}\]
D) The efficiency of a hydrogen-oxygen fuel cell is 23%
Correct Answer: C
Solution :
[c] Correct Nernst equation is \[E=E{}^\circ +\frac{2.303\,RT}{nF}\log {{a}_{{{M}^{n+}}}}.\]
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