Mass Transfer If f = moles of vapour present per mole of feed, then the slope of feed line is - (f - 1)/f (1 - f)/f - f/(1 - f) - 1/f - (f - 1)/f (1 - f)/f - f/(1 - f) - 1/f ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D1.5 K ∝ D K ∝ D2 K ∝ √D K ∝ D1.5 K ∝ D K ∝ D2 K ∝ √D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. Always higher than Same as Dependent on the system; can be either lower or higher than Always lower than Always higher than Same as Dependent on the system; can be either lower or higher than Always lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate efficiency Increases due to weeping and dumping of liquid Is a function of the mass transfer between liquid and vapour Increases due to liquid entrainment Increases due to foaming Increases due to weeping and dumping of liquid Is a function of the mass transfer between liquid and vapour Increases due to liquid entrainment Increases due to foaming ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat sensitive materials with very high latent heat of vaporisation may be economically separated using Liquid extraction Distillation Absorption Evaporation Liquid extraction Distillation Absorption Evaporation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter > 4 :1 < 8 : 1 > 8:1 < 6:1 > 4 :1 < 8 : 1 > 8:1 < 6:1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS