Absorption of Ammonia in a Tray Tower. A tray tower is to be used to remove $99\%$ of the ammonia from an entering air stream containing $6$mol$\%$ ammonia at $293K$ and $1\mathrm{.}013{10}^{5}Pa.$ The entering pure water flow rate is $188kg{H}_2\frac{O}{h}*m^2$ and the inert air flow is $128kg$ air $\frac{?}{h}*m^2.$ Calculate the number of theoretical trays needed. Use equilibrium data from Appendix A$\mathrm{.}3.$ For the dilute end of the tower, plot an expanded diagram to step off the number of trays more accurately.

Use graphical method $($McCabe method$)$ to calculate the trays needed and include your graph.

Show every step and any assumptions made.