An absorption tower operates at 293 K and at an average pressure of 1.013x105 Pa. The water descends through the column and absorbs sulfur dioxide (SO2) from a gas stream that flows countercurrent to...

An absorption tower operates at 293 K and at an average pressure of 1.013x105 Pa. The water descends through the column and absorbs sulfur dioxide (SO2) from a gas stream that flows countercurrent to the liquid stream. At the top of the tower, the incoming water is essentially free of sulfur dioxide and the gas stream in this plane contains 4 mol% of SO2. If the mass transfer coefficient of the liquid phase, kx, is equal to 5.43x10-3 kgmol / m2s and the mass transfer coefficient of the gas phase, ky, is equal to 4.07x10-4 kgmol / m2s, determine the total mass transfer coefficients, Kx and Ky at the top of the tower. What percentage of the total resistance to mass transfer is found in the gas film? For solutions diluted with SO2 in water at 293 K, the equilibrium molar fractions can be evaluated

by: yAi = 0.175xAi