Question

How much electricity is required in coulomb for the oxidation of

(i) 1 mol of H₂O to O₂.

(ii) 1 mol of FeO to Fe₂O₃.

Answer 1

(i) According to the question,

Now, we can write:

Electricity required for the oxidation of 1 mol of H₂O to O₂ = 2 F

= 2 × 96487 C

= 192974 C

(ii) According to the question,

Electricity required for the oxidation of 1 mol of FeO to Fe₂O₃ = 1 F

= 96487 C