For the cell reaction 2Fe3+ (aq) + 2I- (aq) → 2Fe2+ (aq) + I2 (aq) Eo (cell) = 0.24V at 298 K. The standard Gibbs energy (△r GO) of the cell reaction is

Question : For the cell reaction

2Fe³⁺ (aq) + 2I^– (aq) → 2Fe²⁺ (aq) + I₂ (aq)

E^o _(cell) = 0.24V at 298 K. The standard Gibbs energy (△_r G^O) of the cell reaction is

(1) -46.32 kJ mol^-1 

(2) -23.16 kJ mol^-1

(3) 46.32 kJ mol^-1

(4) 23.16 KJ mol^-1

answer : We have AG° =-nFE°