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:

• A. 17.6 mg
• B. 34.3 mg
• C. 24.3 mg
• D. 39.6 mg

Answer 1

The Correct Option is A

Given:
Power = 100 KW
Voltage = 125 V
ECE of chlorine Z = 0.367 x 10^-6 kg/C
Power P = Vi
100 = 125 x i
i = \(\frac {100​}{125}\)
i = 0.8 A
We know that first law of electrolysis 
m = Zit
m = 0.367× 10⁻⁶ × 0.8 × 60
m = 17.616 × 10⁻⁶ kg
m = 17.616 × 10⁻⁶ x 10⁶ mg
m = 17.6 mg

So, the correct option is (A): 17.6 mg