Q$2)$

A gas stream consists of $90$mole$\%N_2$ and $10$mole$\%C{O}_2.$ We wish to absorb the $C{O}_2$ into water. The inlet water is pure and is at $5C.$ Because of cooling coils, the operation can be assumed to be isothermal. Operation is at $10$ bar. If the liquid flow rate is $1\mathrm{.}5$ times the minimum liquid flow rate, how many equilibrium stages are required to absorb $92\%$ of the $C{O}_2.$ Choose a basis of $1$mol$\frac{e}{h}r$ of entering gas. The Henry coefficient of $C{O}_2$ in water at $5C$ is $875$ bar