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The standard electrode potential (Eº) for Daniel cell is +1.1V. Calculate the ∆Gº for the reactionZn(s) + Cu2+(aq) → Zn2+ (aq) + Cu (s) (1F = 96500 C mol-1)
The standard electrode potential (Eº) for Daniel cell is +1.1V. Calculate the ∆Gº for the reactionZn(s) + Cu2+(aq) → Zn2+ (aq) + Cu (s) (1F = 96500 C mol-1)
Zn (s) + Cu2+(aq) → Cu (s) + Zn2+(aq)
Therefore, the value of n=2
∆G°= -nFE°cell
∆G°= -2×96500 C mol-1×1.1 V
∆G°= – 212300 CV = -212300J [∵Coloumb × Volt = Joule]
∆G°= -212.3 KJ.