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Question

The equilibrium constant for the equation: E0=0.46V at 298 K is:
Cu + 2Ag+(aq)Cu2+(aq) + 2Ag

A
2.0 × 1010
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B
3.9 × 1015
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C
4.0 × 1010
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D
2.4 × 1010
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Solution

The correct option is B 3.9 × 1015
For equilibrium , ΔG0=RTlnKeq
But ΔG0=nFE0=2×96500×0.46
ΔG0=88780
lnKeq =887808.314×298
lnKeq=35.833
Keq=3.9×1015

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