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$5\mathrm{.}9\mathrm{.}4$: Ammonia stripping column.

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Paula and Christian are designing a process to remove ammonia from wastewater using an existing stripping column. The liquid stream containing ammonia $(N{H}_3)$ and water $(H_{2}O)$ is fed into the top of the column, and the upward$-$flowing gas stream enters as pure nitrogen $)$ with a volumetric flow rate of $88\mathrm{.}5SCMH.$ At steady state, the pressure and temperature of the stripping column are $503$kPa and $19\mathrm{.}3C.$ When vapor$-$liquid equilibrium is reached at the top of the column, the mole fraction of ammonia in the gas phase is $0\mathrm{.}288$ when the recovery is $91\mathrm{.}7\%$ of the ammonia entering the column. Determine the following three unknowns.

Mole fraction of ammonia in the entering liquid $=$

$$ Total flow rate of the exiting gas stream $=$

Ex: $4940mo\frac{l}{h}r$

Total flow rate of the exiting liquid stream $=$

Ex $7060mo\frac{l}{h}r$