CBSE Class 12-science Answered
3.71 plz
Asked by lovemaan5500 | 19 Aug, 2019, 23:13: PM
Expert Answer
Given:
I = 25 ampere
Volume = 20 L
Mass of Cl2 = 1 kg
= 1000 gm
(i) Reactions taking place at electrodes:
Cathode: 2H2O + 2e− → H2(g) + 2OH−(aq)
Anode : 2Cl−(aq) → Cl2 + 2e−
(ii)
Mole of Cl2
Electrons needed to carry out electrolysis = 2 × 14.08
= 28.16 mol
Quantity of electricity carried by these electrons = 28.16 × 96500 C
Time required,
Current efficiency is 62%
(iii) Molarity of solution:
Amount of OH− ions released = 2× 14.08
= 28.16 mol
Molarity of OH− ions
Answered by Varsha | 20 Aug, 2019, 11:06: AM
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