Mass Transfer In saturated gas, the Vapour is in equilibrium with the liquid at the room temperature Vapour is in equilibrium with the liquid at the gas temperature Partial pressure of vapour equals the vapour pressure of the liquid at room temperature None of the listed here Vapour is in equilibrium with the liquid at the room temperature Vapour is in equilibrium with the liquid at the gas temperature Partial pressure of vapour equals the vapour pressure of the liquid at room temperature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the rate of leaching increases, because the Viscosity of solvent decreases Diffusivity of solute increases Thermal conductivity of solute increases None of these Viscosity of solvent decreases Diffusivity of solute increases Thermal conductivity of solute increases None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are porous Alumina None of these Synthetic zeolites crystals/metal alumino-silicates Silica Alumina None of these Synthetic zeolites crystals/metal alumino-silicates Silica 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 but the residue composition remains unchanged Composition of the residue remains unchanged Less number of trays are required 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 Composition of the residue 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 Reboiler is considered as one theoretical plate, because Reboiler itself contains one plate Vapour is recycled to the column Of the assumption that vapour and liquid leaving the reboiler are in equilibrium None of these Reboiler itself contains one plate Vapour is recycled to the column Of the assumption that vapour and liquid leaving the reboiler are in equilibrium None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate None of these Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate None of these Increased air humidity decreases the rate of drying ANSWER DOWNLOAD EXAMIANS APP
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