Question

In the electrolysis of acidulated water, it is desired to obtain $1.12\, cc$ of Hydrogen per second under $S.T.P.$ condition. The current to be passed is

• A. $19.3\, Amp$
• B. $0.965\, Amp$
• C. $1.93\, Amp$
• D. $9.65\, Amp$

Answer 1

Answer: (D)

$9.65\, Amp$

Answer 2

No. of moles of $H _{2}=\frac{1.12}{22400}$

No. of equivalence of hydrogen

$=\frac{1.12 \times 2}{22400}=10^{-4}$

No. of Faradays required $=10^{-4}$
$\therefore\,\,\,$ Current to be passed in one second

$=96500 \times 10^{-4}$
$=9.65\, A$