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Calculate the cell e.m.f. and DeltaG for...

Calculate the cell e.m.f. and `DeltaG` for the cell reaction at `25^(@)C` for the cell:
`Zn_((s))|Zn^(2+)(0.004M)||Cd^(2+)(0.2M)|Cd_((s))`
`E^(@)` values at `25^(@)C,Zn^(2+)//Zn=-0.763V`
`Cd^(+2)//Cd=-0.403V`
`F=96,500,R=8.314JK^(-1)mo"le"^(-1)`.

Text Solution

Verified by Experts

`Zn|Zn^(2+)||Cd^(2+)+Cd`.
Cell reaction are,
Oxidation: `Zn to Zn^(2+)+2e^(-)`,
Reduction: `Cd^(2+)+2e^(-) to Cd`
Overall: `Cd^(2+)+Zn to Zn^(2+)+Cd`
Here, n=2
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