The exit gas from an alcohol fermenter consists of an air- CO2 mixture containing 15mol%CO2 that s to be absorbed in a 5N solution of triethanolamine (free of CO2 ). If the column operates sothermally at 25C, if the exit liquid contains 78.4% of the CO2 in the feed gas to the absorber, calculate: a. Minimum gas to liquid ratio. b. Number of stages required if (L/V)=1.5(L/V)min The exit gas from an alcohol fermenter consists of an air- CO2 mixture containing 15mol%CO2 that s to be absorbed in a 5N solution of triethanolamine (free of CO2 ). If the column operates sothermally at 25C, if the exit liquid contains 78.4% of the CO2 in the feed gas to the absorber, calculate: a. Minimum gas to liquid ratio. b. Number of stages required if (L/V)=1.5(L/V)min