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Calculate the standard cell potential of...

Calculate the standard cell potential of a galvanic cell in which the following reaction takes place `2Cr(s) + 3Cd^(2+) ( aq) rarr 2Cr^(3+) ( aq) + 3Cd(s)`
Calculate `Delta_( r) G^(@)` and equilibrium constant K of the above reaction at `25^(@)C`.
[Given, `E_(Cr^(3+) //Cr)^(@) = - 0.74 V, E_(Cd^(2+)//Cd)^(@) = - 0.40V, 1F = 96500 C "mol"^(-1)]`

Text Solution

Verified by Experts

The correct Answer is:
`Delta _(r ) G^(@) = - 196860 J "mol"^(-1), K_(c ) = 3.173 xx 10^(4)`
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