We are operating a stripper at 0.75 atm pressure and 25.0C to strip 1,2,3-trichloropropane from water using air as carrier gas. Inlet wa- ter contains 140.0 ppm (mol) 1,2,3-trichloropropane, and water flow rate is 10,000 kg/h. Entering air is pure, and its flow rate is 20.0 kmol/h. Outlet air is 3400.0 ppm (mol) of 1,2,3-trichloropropane. On stage 2 from the top of the column a liquid sidestream is with- drawn at a flow rate of 1000.0 kg/h.