Mass Transfer Back-trapping in a distillation column Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.152 0.079 0.122 0.048 0.152 0.079 0.122 0.048 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer On addition of solute in the solvent, the __________ of the solution decreases. Freezing point Both B and C Boiling point Vapour pressure Freezing point Both B and C Boiling point Vapour pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusion is caused by the Thermal energy of the molecules Transfer of molecules from low concentration to high concentration region Activation energy of the molecules Potential energy of the molecules Thermal energy of the molecules Transfer of molecules from low concentration to high concentration region Activation energy of the molecules Potential energy of the molecules ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the Concentration Nature of the constituents Temperature and pressure None of these Concentration Nature of the constituents Temperature and pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The efficiency of a plate column will be maximum, when the flow is ideal __________ the plate. Across Above Both A & B Neither A nor B Across Above Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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