A 300 cfm stream of an air/chemical mixture containing 1% of the chemical by volume at 25 degrees C and 1 atm is to be scrubbed with water in a counter current packed tower for the purpose of recovering 95% of the chemical. The tower operates at a constant temperature. Determine the height of the tower using the Transfer unit method and given: Liquid flow rate = 1.8 L/min = 100 mol /min of water Equation of Equilibrium Line is y=0.2x Column cross sectional area = 0.5 m2 Kya= 5 x 10-5 gmol/cm3s