A gas from a reactor has 3.0 mol% ethylene oxide (EO, molecular mass: 44 kg/kgmol), the remaining fraction being N2 (molecular mass: 28 kg/kgmol). It is desired that 98% of EO is recovered by absorption into water. The absorber will operate using inlet water that contains 0.04 mol% EO and has a cross-sectional area of 7.6 m. What is the height of the tower needed if 1.4 kgmol/s inlet water is used per kgmol of inlet gas? The film mass transfer coefficients are given by: ky'a=0.83G,0.386, 0.66 kgmol/sm; kx'a=0.0026160.22 kgmol/sm, where Gy and Gx are gas and liquid flow rates per unit cross- sectional area (in kg/sm). Equilibrium data for EO between water and N2 is given in the following page. Note that even though the concentration of EO is low (