Mass Transfer On addition of solute in the solvent, the __________ of the solution decreases. Boiling point Vapour pressure Both B and C Freezing point Boiling point Vapour pressure Both B and C Freezing point ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 0.24 3.97 1 600 0.24 3.97 1 600 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 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 Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The-relative volatility for separation of a non-ideal binary mixture by distillation should be > 1 1 < 1 > 1 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stefan's law describes the mass transfer by Both A & B Neither A nor B Bulk flow Diffusion Both A & B Neither A nor B Bulk flow Diffusion ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the Mixture (to be separated) shows negative deviation from ideality Relative volatility is reasonably constant Mixture (to be separated) shows positive deviation from ideality Multicomponent distillation is involved Mixture (to be separated) shows negative deviation from ideality Relative volatility is reasonably constant Mixture (to be separated) shows positive deviation from ideality Multicomponent distillation is involved ANSWER DOWNLOAD EXAMIANS APP
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