Q2 Acetone is being absorbed by water in a packed tower having a cross-sectional area of 0.186m2 at 25C and 1atm. The inlet air contains 2.6%mol acetone and the outlet 0.5%. The gas flow is 13.65kmolh1 and the water flow is 45.36kmolh1. Film coefficients for the given flows in the tower are: kya=3.78102kmolm3s1mol fraction and kxa=6.16102kmolm3s1mol fraction. Calculate the tower height using: (a) Hy and Ny; (b) HOy and NOy; (c) HETP and number of theoretical stages. Given: y=1.186x at 25C and (yy0)M=0.00602 Answers: (a) 1.88m; (b) 1.91m; (c) 1.92m