Mass Transfer

A. Partial pressure of the vapour to the vapour pressure of the liquid at room temperature
B. Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature
C. Actual humidity to saturation humidity
D. None of these

A. That of normal condensation
B. Integral heat of adsorption
C. Zero
D. None of these

A. A solution of benzene, toluene and o-xylene
B. 35% solution of camphor in water
C. 35% solution of NH3 in water
D. A solution of polar organic compounds (not of homologue of a series)

A. Chemical properties
B. Physical properties
C. Degree of turbulence
D. Interfacial area

A. Both liquids flow at fixed rate
B. Both liquids can have any desired flow rate
C. Only one of the liquids may be pumped at any desired rate
D. Liquid’s flow rate depends upon the temperature and pressure

A. Greater degree of separation with a fixed number of trays
B. Increased reboiler load
C. Increased reflux ratio
D. None of these

A. K ∝ D
B. K ∝√D
C. K ∝ D1.5
D. K ∝ D2

A. Maintaining high critical humidity
B. Maintaining low critical humidity
C. Coating the product with inert material
D. Both A. and C.

A. Only one component
B. Two components
C. Any number of components
D. Only saturated liquid

A. Ammonia in water
B. Benzol present in coke oven gas by wash oil
C. SO2 in alkaline solution
D. All A., B. and C.