First slide

Standard EMF of a cell

Question

For the reduction of silver ions with copper metal, the standard cell potential is 0.46 V at 25⁰C. The value of standard Gibbs energy $∆ G^{0}$ will be

Easy

Solution

$∆ G^{0} = - nFE = - \frac{2 \times 96500 \times 0.46}{1000} ≅ - 89.0 kJ$

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