Vapor Liquid Downflow area, A4 (from tray above) Downflow area, A (to tray below) Active area, A. Total area, A= A, + 244 Ул K, 2.759 1.225 Component 0.2971 0.4631 0.3521 0.1700 0.1459 0.4677 0.1802 1.0000 0.4290 0.3865 0.2398 1.0000 0.4010 1.0000 0.3673 04676 1.0000

The following results were obtained for Tray n from a rate-basedcalculation of a ternary distillation at 14.7 psia, involving acetone (1), methanol (2), and water (3) in a 5.5-ft-diameter column using sieve trays with a 2-inch-high weir. Vapor and liquid phases are assumed to be completely mixed.The computed products of the gas-phase, binary mass-transfer coefficients
and interfacial area, using the Chan–Fair correlation of §6.6,are as follows in lbmol/:
k₁₂ =k₂₁=1, 955; k₁₃ =k₃₁ =2,407; k₂₃=k₃₂ = 2,797
(a) Compute the molar diffusion rates. (b) Compute the masstransfer
rates. (c) Calculate the Murphree vapor-tray efficiencies.