Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when An azeotrope forms Saturated feed is not used The latent heat of vaporisation of the more and less volatile components are greatly different A total condenser is used An azeotrope forms Saturated feed is not used The latent heat of vaporisation of the more and less volatile components are greatly different A total condenser is used 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 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) 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 Less number of trays are required Composition of the residue remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, continuous rectification to get pure products will require Less number of trays Small cross-section column Low reflux ratio High reflux ratio Less number of trays Small cross-section column Low reflux ratio High reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As per Gilliland's equation, the diffusivity is All of these Dependent on the molecular volume & molecular weight of components Directly proportional to 'T1.5' Inversely proportional to 'P' All of these Dependent on the molecular volume & molecular weight of components Directly proportional to 'T1.5' Inversely proportional to 'P' ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The percentage humidity is less than the relative humidity only at __________ percent humidity. Both zero and hundred Zero Hundred None of these Both zero and hundred Zero Hundred None of these ANSWER DOWNLOAD EXAMIANS APP
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