On the basis of the information available from the reaction, 4 / 3 Al + O 2 → 2 / 3 Al 2 O 3 ; ΔG = − 827 kJmol − 1 , the minimum e.m.f. required to carry out electrolysis of A l 2 O 3 is ( F = 96500 C m o l - 1 )

Question

On the basis of the information available from the reaction, 4 / 3 Al + O 2 → 2 / 3 Al 2 O 3 ; ΔG = − 827 kJmol − 1 , the minimum e.m.f. required to carry out electrolysis of A l 2 O 3 is ( F = 96500 C m o l - 1 ), 2.14 V, 4.28 V, 6.42 V, 8.56 V

MARKS App · Accepted Answer

Δ G = - n F E ° E ° = Δ G - n F - - 827000 - 4 × 96500 = 2.14

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