Quiz (1): SO2 is to be absorbed by water from a dilute gas stream in air using a tray tower which receiving feed gas containing 7.5 mol% of solute to be reduced to 5% of this value. The pure water was used as a solvent and the outlet 5.5 mol% of solute in it. If packed tower used, the height equivalent to theoretical plate is 1 m. 2.9 cm diameter rashing rings and the overall mass transfer coefficient of gas phase is equal to 0.045 kmolm.sec.atm. The equilibrium equation is y = 0.85 * x. determine the absorption factor?