A packed-column absorber is used to reduce a dilute air- ammonia mixture from 4.93mol% NH3 to the desired 0.2mol%NH3. The inlet gas rate will be 136mol/m2. s and the inlet NH3 free water rate will flow countercurrent to the rising gas stream, flowing at an actual Ls/Gs ratio that is 1.4 times the minimum Ls/Gs ratio. At that flow rate, the overall mass-transfer capacity coefficient, KY a, is estimated to be equal to 107mol/m2sYA. At the temperature and pressure of the absorber, the equilibrium concentrations are related by yNH3=1.075xNH3 Determine a) the kg of ammonia absorbed per second per square meters of cross-sectional area b) the height of packing required for the absorption process