In producing chlorine by electrolysis $100 \mathrm{~kW}$ power at $125 \mathrm{~V}$ is being consumed. How…
In producing chlorine by electrolysis $100 \mathrm{~kW}$ power at $125 \mathrm{~V}$ is being consumed. How much chlorine per minute is liberated (ECE of chlorine is $0.367 \times 10^{-6} \mathrm{kgC}^{-1}$ )
$1.76 \times 10^{-3} \mathrm{~kg}$
$9.67 \times 10^{-3} \mathrm{~kg}$
$17.61 \times 10^{-3} \mathrm{~kg}$
$3.67 \times 10^{-3} \mathrm{~kg}$
Solution
Mass of the substance deposited at the cathode
$\begin{aligned}
\mathrm{m} & =\mathrm{zlt} \\
& =\mathrm{z}\left(\frac{\mathrm{W}}{\mathrm{V}}\right) \mathrm{t} \\
& =0.367 \times 10^{-6} \times \frac{100 \times 10^3}{125} \times 60 \\
& =17.6 \times 10^{-3} \mathrm{~kg}
\end{aligned}$