Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Does not change with time Decreases with time Does not affect the moisture content of the wet solid Increases with time Does not change with time Decreases with time Does not affect the moisture content of the wet solid Increases with time ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture. Free Bound Equilibrium Unbound Free Bound Equilibrium Unbound ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is 4.605 9.21 100 0.001 4.605 9.21 100 0.001 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams Increases Remains unaffected Passes through a maximum Decreases Increases Remains unaffected Passes through a maximum Decreases 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 solvent used in liquid-liquid extraction should have __________ less than one. Both A & B Distribution co-efficient Neither A nor B Selectivity Both A & B Distribution co-efficient Neither A nor B Selectivity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS