Mass Transfer The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid ) T √T T³ T² T √T T³ T² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in pressure, the relative volatility for a binary system Remains same Decreases Increases Either A or B, depends on the system Remains same Decreases Increases Either A or B, depends on the system ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske equation determines the Height of the distillation column Minimum number of theoretical plates Maximum number of ideal plates Optimum reflux ratio Height of the distillation column Minimum number of theoretical plates Maximum number of ideal plates Optimum reflux ratio 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 Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol More number of trays are required but the residue composition remains unchanged Less number of trays are required Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The percentage humidity is less than the relative humidity only at __________ percent humidity. Zero None of these Hundred Both zero and hundred Zero None of these Hundred Both zero and hundred ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A good solvent used for absorption should not have very high Viscosity Vapor pressure Freezing point All of these Viscosity Vapor pressure Freezing point All of these ANSWER DOWNLOAD EXAMIANS APP
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