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The standard emf of Deniell cell is 1.1 ...

The standard emf of Deniell cell is `1.1` V. Calculate the standard Gibbs energy for the cell reactions:
`Zn_((s))+Cu_((aq))^(2+)to Zn _((aq))^(2+)+Cu_((s))`

Text Solution

Verified by Experts

`Delta_(r) G^(Θ)=-nFE_((cell))^(Θ)`
nin the above equation is `2,F =96487 C mol ^(-1)and E_((cell))^(Θ)=1.1V`
Therefore `Delta_(r)G^(Θ)=-2xx1.1V xx96487C mol ^(-1)`
`=-21227J mol ^(-1) =-212.27kJ mol ^(-1)`
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