Mass Transfer Surface renewal model of mass transfer was enunciated by Stefan Fick Toor and Marchello Danckwerts Stefan Fick Toor and Marchello Danckwerts ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio decreases, the None of these Separation becomes more efficient Number of plates increases Column diameter increases None of these Separation becomes more efficient Number of plates increases Column diameter increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Alcohol is dehydrated using __________ distillation. Extractive Steam Molecular Azeotropic Extractive Steam Molecular Azeotropic 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) Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Physical absorption is Both B & C Accompanied by evolution of heat A reversible phenomenon An irreversible phenomenon Both B & C Accompanied by evolution of heat A reversible phenomenon An irreversible phenomenon ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is 1.04 1.94 0.54 1.24 1.04 1.94 0.54 1.24 ANSWER DOWNLOAD EXAMIANS APP
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