Mass Transfer

A. Solvent of low latent heat of vaporisation should be used
B. Solvent of low freezing point should be used
C. Large quantity of solvent is required to extract the solute
D. Very small quantity of solvent is required

A. Liquid-liquid extraction
B. Leaching
C. Absorption
D. None of these

A. Pulse column
B. Spray column
C. Mixer settler
D. Baffle tower

A. Increases
B. Decreases
C. Remain same
D. Either A. or B., depends on the system

A. 0
B. 1
C. 2
D. 3

A. Evaporation
B. Drying
C. Crystallisation
D. Both B. and C.

A. Thermal diffusivity/mass diffusivity
B. Thermal diffusivity/momentum diffusivity
C. Momentum diffusivity/mass diffusivity
D. Mass diffusivity/thermal diffusivity

A. Operating
B. Total
C. Minimum
D. Maximum permissible

A. Lower than
B. Higher than
C. Equal to
D. Either A. or B., depends on the mixture composition

A. Form minimum boiling azeotrope
B. Have very wide boiling points
C. Have very close boiling points
D. Form constant boiling azeotrope