Q. 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 × 10⁻⁶ kg/C :

A) 17.6 mg
B) 34.3 mg
C) 24.3 mg
D) 39.6 mg
Explanation

[Solution from source] The current drawn is I = P/V = 100/125 = 0.8 A, so the charge passed in one minute is 0.8 × 60 = 48 C. By Faraday's first law m = ZQ = 0.367 × 10⁻⁶ × 48 ≈ 1.76 × 10⁻⁵ kg = 17.6 mg. Forgetting the 60 s factor or using V instead of I gives none of the other values. Answer (1).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

Want to attempt the full paper?
View Full Paper Take Full Paper Online