1.

Whatis the current efficiency of anelectrodepositionof Cumetal from CuSO_(4) solutionin which 9.80g copper is deposited by the passage of 5Acurrentfor 2h?

Answer»

0.5
8.528
0.414
1

Solution :`("weight")/("EQUIVALENT weight") =("it")/(96500)`
`(9.8) /(63.5//2) =(ixx2xx60xx60)/(96500) rarr I = 4.14 A`
`therefore`currentefficiency `=("THEORETICAL VALUE of I")/("pratical value of I") XX100`
`=(4.41 )/(5)xx100=82.8 %`


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