Question

Calculate approximately how much current is necessary to produce oxygen gas at the rate of $1mL$ per second?

Answer 1

$2O^{2-}$ + $4e^{-}$ $\to$ $O_2$

at STP condition, we have 1 mole of gas = 22.4 L

so, for 22400 ml we require 386000 C or (4 faraday)

for 1 ml = $\frac{386000}{22400}$ = 17.2321 C

$Q=It$

$I=$ $\frac{17.2321}{1}$

so the current required is 17.2321 $amp$