During the electrolysis of sulphuric acid, the following processes
are possible at the anode:
2H2O(l) ® O2(g) + 4H+(aq) + 4e–     
(
)
o
Ecell
= +1 23 V
(2 38)
Rationalised 2023-24
54
Chemistry
2SO4
2– (aq) ® S2O8
2– (aq) + 2e–    
(
)
o
Ecell
 = 1 96 V
(2