ElectrochemistryHard

Question

The standard EMF for the cell reaction: Zn(s) + Cu2+ (aq) → Zn2+ (aq) + Cu(s) is 1.10 volts at 25°C. The EMF of the cell reaction when 0.1 M Cu2+ and 0.1 M Zn2+ solutions are used at 25°C is

Options

A.1.10 V
B.1.041 V
C.−1.10 V
D.−1.041 V

Solution

$E_{cell} = E_{cell}^{o} - \frac{RT}{2F}.\ln\frac{\left\lbrack Zn^{2 +} \right\rbrack}{\left\lbrack Cu^{2 +} \right\rbrack}$

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