In a gas absorption tower, acetone is absorbed from its mixture with air using a nonvolatile absorption oil. 100 mol/h of gas mixture enter the bottom of the column contains 30 mol% acetone while 261.9 mol/h oil enter the top of the column. The exiting gas stream is to contain 1.3 mol% acetone. a) Determine molar flow rate of the exiting gas and exiting liquid streams. b) Determine number of stages required for the above process. Equilibrium line for acetone in air (Y) and acetone in oil (X') is provided in Figure 3. (4 marks) (4 marks) 0.5 0.45 Од 0.35 0.3 > 0.25 0.2 0.15 0.1 0.05 Equilibrium line for acteone in air and acetone in oil at 1 atm 0 0.05 0.1 0.15 0.2 0.25 X'