50. For a standard Ag-Zn button cell, the net spontaneous reaction is . If the standard Gibbs free energies of formation () for and are -11.2 kJ/mol and -318.3 kJ/mol respectively, what is the ?

Question

50. For a standard Ag-Zn button cell, the net spontaneous reaction is $Zn(s) + Ag_2O(s) \rightarrow ZnO(s) + 2Ag(s)$. If the standard Gibbs free energies of formation ($\Delta G_f^\circ$) for $Ag_2O$ and $ZnO$ are -11.2 kJ/mol and -318.3 kJ/mol respectively, what is the $E^\circ_{cell}$?

Prashant Kotian · Accepted Answer

Correct answer: A. . The reaction transfers 2e- (). .

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