# Free energy change and electrical work done in a cell

Chemistry Level 3

The e.m.f of the cell reaction,$\ce{Zn}(\text s) + \ce{Cu^2+} (\text{aq}) \ce{->} \ce{Zn^2+} (\text{aq}) + \ce{Cu}(\text s)$ is $$1.1\text{ V}$$. Calculate free energy change for the reaction if enthalpy of the reaction is $$-216.7~ \text {KJ mol}^{-1}$$,calculate the entropy change for the reaction(in $$\text {J}\text {K}^{-1}\text {mol}^{-1}$$.

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