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Calculate the maximum possible electric work that can be obtained from the following cell under the standard conditions at `25^(@)C` : Given
`Zn|Zn^(2+)(aq)||Sn^(2+)(aq)|Sn(s)`
At `25^(@)C,E_(Zn^(2+)(aq)|Zn(s))^(@)=-0.76V`
`E_(Sn^(+)(aq)|Sn(s)=-0.14V.)^(@)`
`F=96500C" mol"^(-1)`

Text Solution

Verified by Experts

`E_("cell")^(@)=E_("cathode")^(@)-E_("anode")^(@)`
`E_("cell")^(@)=-0.14-(-0.76)`
`=-0.14+0.76`
`=+0.62`
`DeltaG^(@)=-nFE_("cell")^(@)`
`=-2xx96500xx0.62`
`=-11966CV(J)`
`DeltaG^(@)=-11.966kJ`.
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