Q.

Calculate the standard Gibbs free energy of Zn(s)+Cu2+(aq)⟶Zn2+(aq)+Cu(s˙)

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a

-91 FEcell

b

-2 FEcell

c

-3 FEcell

d

-4 FEcell

answer is B.

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Detailed Solution

ΔrG=−nFEcell ∵ n=2, so ΔrG=−2FEcell
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