The standard cell potential, E°cell, for a reaction in which two electrons are t

Question

The standard cell potential, E°cell, for a reaction in which two electrons are transferred between the reactants is +1.33 V. Calculate the standard free energy change, G°, in kJ for this reaction and determine if it is spontaneous or nonspontaneous at 25°C.

The standard cell potential, E°cell, for a reaction in which two electrons are transferred between the reactants is +1.33 V. Calculate the standard free energy change, G°, in kJ for this reaction and determine if it is spontaneous or nonspontaneous at 25°C.

2.57 × 102 kJ, nonspontaneous 1.28 × 102 kJ, spontaneous 2.57 × 102 kJ, spontaneous +2.57 × 102 kJ, nonspontaneous

Explanation / Answer

dG = -n*F*E*

dG = -2*96500*1.33

dG = -256,690 J/mol

dG = -256.69 kJ

this must be spontaneous, since it is negative

choose

?2.57 × 102 kJ, spontaneous

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