Question

A steady current of 1.5 A flows through a copper
voltameter for 10 minutes. If the electrochemical
equivalent of copper is 30 x 10-5 g coulomb-", the
mass of copper deposited on the electrode will be
[AIPMT (Prelims)-2007]
(1) 0.27 g
(2) 0.40 g
(3) 0.50 g
(4) 0.67 g

Answer 1

Answer: The answer should be 0.27 grams.

Explanation: As we know by Faraday's law of electrolysis that ,

Mass deposited = electrochemical equivalent * charge flown

So , Mass = [ 1.5 * 10 * 60 * 30 * 10^(-5) ]

=> Mass = 0.27 grams.