.A 5-stage countercurrent absorber is used to absorb acetone from air into water at 3 atm pressure and 20°C. The total inlet gas flow rate is 100 kmol/h. The inlet gas is 0.004 mole fraction acetone. The inlet liquid contains 0.0001 mole fraction acetone. Outlet gas is 0.0002 mole fraction acetone. Assume total liquid and gas flow rates are constant. At 20°C the Henry's law constant for acetone in water is H = 1.186 atm/(mole fraction). Find the liquid flow rate required and the mole fraction acetone in the outlet liquid.

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Convective Mass Transfer between Phases

Mass transfer means the transport or movement of mass using streams, phases, components, and so on from one location to another.