Mass Transfer Pick out the wrong statement. Raoult's law does not apply, when the Attractive forces between like and unlike molecules in the solution are approximately equal Size of component molecules are not equal Chemical combination or molecular association between unlike molecules takes place in the formation of solution Component molecules are nonpolar Attractive forces between like and unlike molecules in the solution are approximately equal Size of component molecules are not equal Chemical combination or molecular association between unlike molecules takes place in the formation of solution Component molecules are nonpolar ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusivity of a liquid Increases with temperature Is independent of temperature May increase or decrease with temperature Decreases with temperature Increases with temperature Is independent of temperature May increase or decrease with temperature Decreases with temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer McCabe-Thiele method Uses weight fractions to express liquid and vapour composition Can use any type of units Uses molal units for material and energy balance Is more accurate than Ponchan-Savarit method Uses weight fractions to express liquid and vapour composition Can use any type of units Uses molal units for material and energy balance Is more accurate than Ponchan-Savarit method ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During drying operation, it is easier to remove the __________ moisture. Bound Critical Equilibrium Unbound Bound Critical Equilibrium Unbound 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 Remains unaffected Decreases Passes through a maximum Increases Remains unaffected Decreases Passes through a maximum Increases ANSWER DOWNLOAD EXAMIANS APP
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