. Current efficiency is defined as the extent of a desired electrochemical reaction divided
by the theoretical extent of the reaction times 100%. What is the current efficiency of an electrodeposition of Cu metal in which 9.8 g Cu is deposited by passage of 3A current for 10000 seconds.
A. 0.9%
B. 49.9%
C. 99.1%
D. 51.1%
Best Answer
Ans: C
If 0.311 mol electrons provided by the current 0.308 mol was used to deposit copper
The current efficiency is 0.308/0.311X 100= 99.1%
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