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Question

The half-cell reactions for rusting of iron are,
2H++12O2+2e2H2O, E=+1.23V,
Fe2++2eFe(s); E=0.44V.
ΔG (in kJ) for the reaction is :

A
− 76
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B
– 322
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C
– 122
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D
– 176
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