On the basis of the information available from the reaction, 4/3Al + O2 $ \to $ 2/3Al2O3, $\Delta $G = $-$ 827 kJ mol$-$1 of O2, the minimum e.m.f. required to carry out an electrolysis of Al2O3 is (F = 96500 C mol$-$1)

Question

On the basis of the information available from the reaction,

4/3Al + O₂ $ \to $ 2/3Al₂O₃, $\Delta $G = $-$ 827 kJ mol^$-$1 of O₂,

the minimum e.m.f. required to carry out an electrolysis of Al₂O₃ is
(F = 96500 C mol^$-$1)

2.14 V