1) Acetone is being absorbed by water in a packed column with cross-sectional area, a=0.186m2. The packing material has specific surface area, s=100m2 per cubic metre. The inlet air contains 2.6 mole % acetone this is to be reduced to 0.5% in the outlet. The inlet gas flow is 13.65kmolhr1 and the inlet flow of pure water is 45.36kmolhr1 The gas and liquid-phase film mass transfer coefficients are 3.78104kmols1m2 and 6.16104kmol1m2 respectively. The equilibrium relationship is y=1.32x. The solution can be treated as dilute. A. Calculate the tower height using ht