Standard free energies of formation (in kJ/ mol) at 298 K are – 237.2, – 394.4 and – 8.2 for H2O(l), CO2(g) and pentane (g), respectively. The value of Ecell0 for the pentane-oxygen fuel cell is :

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answer is 2.

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Detailed Solution

Calculation of 'n' valuedecrease in oxidation state of Oxygen atom = 2Total decrease in oxidation state of Oxygen atom = 2 x 16 =32

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