Question 1 (Mass Transfer in Stripping Column across Phases): . A 5-cm wetted-wall column is being used to strip SO2 from an aqueous solution by an air stream flowing at 0.76 m s"!. At one point in the column, the concentration of the SO2 in the air stream is 0.01 mole fraction. At the same point in the column, the concentration of SO2 in the water is 0.005 mole fraction. The column is operated at 10 atm and 20C. The individual gas film mass transfer coefficient, kp, is 1.2342 x 10-4 kmol/(atmm2.s). (a) Assume that the liquid film resistance contributes by 40% to the overall mass transfer resistance; calculate the values of the overall gas-phase mass transfer coefficient, KG, and the individual liquid film mass transfer coefficient, kc. [6 Marks] (b) What is the mass flux at the point of consideration in the column? [4 Marks] Data Given: Molecular mass of SO2 = 64 kg/kmol Henry's constant, Ha, for SO2 in water at 20C = 0.6234 atm. m3/kmol Molar density of water = 56.14 kmol/m3