Question
In producing chlorine through electrolysis 100 W power at 125 V is being consumed. How much chlorine per min is liberated? ECE of chlorine is 0.367 x 10-6 kg/C
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17.6 mg
-
21.3 mg
-
24.3 mg
-
13.6 mg
Solution
A.
17.6 mg
The mass of a substance deposited or liberated at an electrode is directly proportional to the quantity of electricity i.e., charge passed through the electrolyte.
Power consumed in electrolysis, P = 100 W
Voltage applied, V = 125 V
So, current in the solution,
According to first law of Faraday, mass liberated at an electrode is directly proportional to charge passed through the electrolyte i.e.,
where z is a constant called 'electro chemical equivalent' (ECE).
Also, Q = it
Given,
