In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is:

Options

A. 9.65 A
B. 19.3 A
C. 0.965 A
D. 1.93 A

Answer

A

Explanation

No. of moles of `H_(2) = 1.12/2240`
`therefore` No. of equivalents of hydrogen
` (1.12 xx 20)/22400 = 10^(_4)`
No.of Faraday.s required `= 10^(-4)`
`therefore` Current to be passed in 1 sec = `96500 xx 10^(-4)`
= 9.65 A