Mass Transfer With increase in temperature, the leaching rate increases due to Increased diffusivity Decreased liquid viscosity Neither A nor B Both A & B Increased diffusivity Decreased liquid viscosity Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Alcohol is dehydrated using __________ distillation. Azeotropic Molecular Steam Extractive Azeotropic Molecular Steam Extractive ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Separation of two volatile liquids by distillation makes use of their Relative volatility Density difference Selectivity Solubility Relative volatility Density difference Selectivity Solubility ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Weeping in a distillation column Provides large interfacial surface for mass transfer Results due to very low gas velocity Increases tray efficiency Results due to very high gas velocity Provides large interfacial surface for mass transfer Results due to very low gas velocity Increases tray efficiency Results due to very high gas velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required More number of trays are required but the residue composition remains unchanged Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution. Both A & B Viscosity Degree of ideality Neither A nor B Both A & B Viscosity Degree of ideality Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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