The zinc/silver oxide cell is used in electric watches. The reaction is as following, Zn 2+ + 2e - -> Zn ; E 0=-0.760 V Ag2O + H2O + 2e - -> 2Ag + 2OH - ; E 0=0.344 V If F is 96,500 C mol -1 , G 0 of the cell will be

1. A. 413.021 kJ mol -1
2. B. 113.072 kJ mol -1
3. C. 213.072 kJ mol -1
4. D. 313.082 kJ mol -1

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