Mass Transfer Which of the following is an undesirable property in a tower packing? Low weight per unit volume Large free cross-section Large surface per unit volume Large weight of liquid retained Low weight per unit volume Large free cross-section Large surface per unit volume Large weight of liquid retained ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called Elutriation or elution None of these Decoction Percolation Elutriation or elution None of these Decoction Percolation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular distillation is High temperature distillation Very low pressure distillation For heat-sensitive materials Both B and C High temperature distillation Very low pressure distillation For heat-sensitive materials Both B and C ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of 1.5 -1.5 -0.6 0.6 1.5 -1.5 -0.6 0.6 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second. 5 to 10 1 to 5 1 > 10 5 to 10 1 to 5 1 > 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when A total condenser is used The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used An azeotrope forms A total condenser is used The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used An azeotrope forms ANSWER DOWNLOAD EXAMIANS APP
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