A. Density difference

C. Solubility

D. Selectivity

A. Vacuum distillation

C. Multi-component distillation

D. High pressure operation

A. 25

B. < 25

D. 25

A. Height < 6

B. Diameter < 0.6

D. Neither A. nor B.

A. Remains unchanged

B. Decreases exponentially

D. Decreases

A. Compressed air jet

C. Suction pump

D. None of these

A. Lies above the equilibrium line

B. Is far from the equilibrium line

C. Lies below the equilibrium line

B. Ternary mixture is represented by the sides

C. Binary mixture is represented by the apex

D. Binary mixture is represented by any point inside

B. Remain unchanged

C. Increase/decrease; depends on the temperature

D. Decrease

A. 100

B. < 100

D. None of these

A. Bubble cap

C. Perforated tray

D. Packed

A. Thermal diffusivity/mass diffusivity

B. Thermal diffusivity/momentum diffusivity

D. Mass diffusivity/thermal diffusivity

A. Is a static bed leaching equipment

C. Is a centrifugal extractor

D. Employs only counter-current extraction

A. Decreased solute solubility

B. Large number of trays

D. Large minimum liquid to gas (L/G) ratio

A. None of these

C. Beginning of constant

D. End of falling

A. All A., B. & C.

B. Increases the scale forming tendencies of water

C. Is undesirable

D. salt and impurities</strong>

A. All A., B. & C.

C. Dependent on the water lost by evaporation

D. Desirable

A. Ternary mixture

B. Binary mixture

C. Insoluble binary system

A. Absorption

B. None of these

D. Liquid-liquid extraction

A. D ? 1/P1.5

C. D ? P0.5

D. D ? 1/P0.5

A. Temperature at constant humidity

B. Humidity at constant temperature

D. Neither A. nor B.

A. Increases due to weeping and dumping of liquid

C. Increases due to foaming

D. Increases due to liquid entrainment

A. None of these

B. Bollman extractor

C. Centrifugal extractor

A. Remain same

B. Increases

C. Either A. or B., depends on the system

A. Partial condenser

B. Total condenser

C. Reboiler

B. 8

C. 12

D. 18

A. Selectivity

B. Absorption factor

D. Murphree efficiency

A. Stefan

B. Fick

C. Toor and Marcello

A. Yes; if the reflux ratio is maximum

B. Yes

C. Normally not; but is possible if infinite number of plates are put

A. 1

C. #NAME?

D. -1

A. Decreases with temperature

B. May increase or decrease with temperature

D. Is independent of temperature

A. Low pressure

B. Extractive

D. High pressure

A. Solvent flow rate should be very low

B. Amount of solvent required will be minimum

C. Separation of the constituents is the most effective

A. Spray

C. Packed

D. Bubble cap plate

B. Increases tray efficiency

C. Provides large interfacial surface for mass transfer

D. Results due to very high gas velocity

B. Erosion of the tower

C. Very efficient operation

D. Increased relative volatility

A. Distillation

C. Absorption

D. None of these

A. ?T

B. 1/T

C. T2

A. Employs only one solvent

B. Results in low interfacial tension

C. None of these

B. Drying cost per unit weight of dried product is less

C. Product with more uniform moisture content is produced

D. Equipment size required is smaller

A. 1.5

C. -0.6

D. 0.6

A. Moles transferred/ [(time) (area) (pressure)]

B. Moles transferred/ [(time) (area) (mass A/mass B)]

C. Moles transferred/ [(time) (area) (mole fraction)]

A. Galileo number

C. Dean number

D. Weber number

B. Volumetric diffusivity

C. Thermal diffusivity

D. Kinematic viscosity

A. Having maximum possible points of contact

B. Providing minimum percentage of voids

C. Providing irregular grain size

A. Selectivity

B. Distribution co-efficient

C. Both A. and B.

A. Fixed bed adsorption

C. Moving bed absorption

D. Fixed bed absorption

A. Solvent of low latent heat of vaporisation should be used

B. Solvent of low freezing point should be used

C. Very small quantity of solvent is required

A. 1.94

B. 0.54

C. 1.04

A. None of these

B. Dehumidified

D. Humidified at constant wet bulb temperature