Mass Transfer For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same. Neither A nor B Constant rate Both A & B Unsaturated surface Neither A nor B Constant rate Both A & B Unsaturated surface 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 None of these Temperature and pressure Concentration Nature of the constituents None of these Temperature and pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fractional solvent extraction Employs only one solvent None of the listed here Results in low interfacial tension Employs two solvents Employs only one solvent None of the listed here Results in low interfacial tension Employs two solvents ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Increases tray efficiency 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 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the system with maximum boiling azeotrope at 1 atm. Ethyl alcohol-water Acetone chloroform Benzene-ethyl alcohol None of these Ethyl alcohol-water Acetone chloroform Benzene-ethyl alcohol None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can not be increased by Increasing the air velocity over the wet surfaces None of these Reducing the humidity of entering air Lowering the barometric pressure Increasing the air velocity over the wet surfaces None of these Reducing the humidity of entering air Lowering the barometric pressure ANSWER DOWNLOAD EXAMIANS APP
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