We are absorbing hydrogen sulfide at $15C$ into water. The entering water is pure. The feed gas contains $0\mathrm{.}0012$ mole fraction hydrogen sulfide and we want to remove $97\%$ of this in the water. The total gas flow rate is $10$kmo$\frac{l}{h}.$ The total liquid flow rate is $2000$kmo$\frac{l}{h}.$ Total pressure is $2\mathrm{.}5$ atm. You can assume that total liquid and gas flow rates are constant. Henry's law constant for $H_{2}S$ in water is $423at\frac{m}{m}$ole frac.