Mass Transfer

A. Concentration of liquid and vapour leaving a plate will be same
B. Reflux ratio will be maximum
C. Number of plates required will be maximum
D. None of these

A. Thermal
B. Pressure
C. Concentration
D. Force

A. Increases
B. Decreases
C. Remain unaffected
D. Passes through a maximum

A. Reducing the total pressure
B. Increasing the total pressure
C. Reducing the temperature
D. Both B. and C.

A. Substances from non-volatile impurities
B. Volatile impurity from still higher boiling substances
C. Both A. and B.
D. Neither A. nor B.

A. -ve
B. +ve
C. 1
D. -1

A. Molar heats of vaporisation of components are nearly equal
B. Linear crystal growth rate depends on the degree of super-saturation
C. Linear crystal growth rate does not depend on the crystal size
D. Linear crystal growth rate depends on the crystal size

A. Reduce the overall pressure drop
B. Avoid channelling
C. Reduce liquid hold-up
D. Avoid flooding

A. Reverse osmosis
B. Thermal diffusion
C. Leaching
D. Solvent extraction

A. Having very close boiling points
B. Which form maximum boiling azeotrope
C. Having very wide boiling points
D. Which form minimum boiling azeotrope