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21/01/2022 4:53 pm
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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.
1 Answer
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21/01/2022 5:00 pm
(i) According to the question,
H2O → H2 + 1/2 O2
Now, we can write
O2- → 1/2 O2 + 2e-
Electricity required for the oxidation of 1 mol of H2O to O2 = 2 F
= 2 × 96487 C
= 192974 C
(ii) According to the question,
Fe2+ → Fe3+ + e-
Electricity required for the oxidation of 1 mol of FeO to Fe2O3 = 1 F
= 96487 C