The electrochemical equivalent of platinum is 5.0 x 10-7kgC-1 to plate-out 1.0kg of platinum, a current of 100A must be passed through an appropriate vessel for
A
5.6 hours
B
56 hours
C
1.4 x 104 hours
D
2.0 x 104 hours
Verified Correct Answer: A.
Physical Principles & Numerical Solution
m = Itz
1 = 100 x 5 x 10-7 x t
t = 20,000sec
= 5.6hrs
Source: Myschool Past Questions Archive (Record #28203)