In a cylindrical wetted wall column (ID x L = 2.54 cm x 1 m) experiment, air flow upward into the inner section of the column at 37 C, 1 atm and a flow rate of 250 cm3/s, while water enters the top of the column at 35 C and flows downward on the inner walls of the column and leaves at 38 C. The partial pressure of water at the inlet and outlet air is 1.33 and 4.0 kPa, respectively. The vapor pressure of water is given by: () = 8.1103() 2.385 Calculate: (10 pints) The rate of mass transfer of water into air? (5 Points) The average flux of water into air? (5 Points) The mass transfer driving force at the inlet and outlet of the column (in atm) (5 Points) The mass transfer coefficient, KG.