-->

Electrochemistry

Question
CBSEENCH12005977

How much electricity is required in coulomb for the oxidation of
1 mol of H2O to O2 ?

Solution
2H2O   4H++O2+4e  2 mol                       4 mol or 4F

1 mol of H2O  will give one atom of O 
Charge on O = – 2
Electricity required         =n F
= 2 × 96487 Coulombs
= 192974 Coulombs
= 1.93 × 105 Coulombs