9. In a bioprocess, molasses is fermented to produce a liquor containing ethyl alcohol. A CO2-rich vapor with a small amount of ethyl alcohol is evolved. The alcohol is recovered by absorption with water in a tower packed with 1.5-inch metal Pall rings. The minimum liquid flow rate is 104.29 kmol/h. Hoc = 0.5m. Entering gas is 180 kmol/h; 98% CO₂, 2% ethyl alcohol; The K-value of ethyl alcohol based on Raoult's law at 30°C and 110 kPa is found to be 0.57. Entering liquid absorbent is 100% water; 30°C and 110 kPa Required recovery (absorption) of ethyl alcohol is 97%. a. Determine the required packed height for countercurrent flow of liquid and gas, assuming isothermal, isobaric conditions and that only alcohol is absorbed b. What is the mole fraction of ethyl alcohol in the exit liquid stream?