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How long will it take for a current of 3...

How long will it take for a current of 3 amperes to decompose 36g of water? (Eq. wt. of hydrogen is 1 and that of oxygen is 8)

A

36 hors apporx

B

18hours approx.

C

9 hours approx

D

4-5 hours approx.

Text Solution

Verified by Experts

The correct Answer is:
A
`W=Z I t`
Eq. mass of water `=("Mol.mass")/(2)=(18)/(2)=9`
`Z=("Eq. mass of water")/(96500)=(9)/(96500)`
`36g=(9)/(96500)xx3xxt
`therefore t=128866.7s=36` hours.
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