Category: Mass Transfer

A. Partial pressure of a component over a solution is proportional to its mole fraction in the
liquid
B. Partial pressure of a component over a solution is proportional to the mole fraction in the
vapour
C. Vapour pressure is equal to the product of the mole fraction and total pressure
D. Partial pressure is equal to the product of the mole fraction and total pressure

A. Bound moisture is removed during constant rate drying period
B. Free moisture is removed during falling rate drying period
C. The sum of free moisture and equilibrium moisture in a solid is called the critical moisture
D. The driving force for mass transfer in a wet solid is its free moisture content

A. Individual mass transfer co-efficient (M.T.C.) in gaseous system
B. M.T.C. of individual components in a liquid-liquid system
C. M.T.C. of liquid in liquid-gas system
D. The overall M.T.C. of the system

A. Uranium from its ore
B. Water from petrol
C. Ammonia from coke oven gas
D. Mustard oil from mustard seed

A. 0
B. 1
C. ∞
D. < 1

A. Decreases in winter
B. Increases in winter
C. Increases in summer
D. None of these

A. S2/S1
B. S1/S2
C. S1 – S2
D. S1 × S2

A. Murphree efficiency > point efficiency
B. Murphree efficiency < point efficiency
C. Murphree efficiency = point efficiency
D. Murphree efficiency ≠ point efficiency

A. Exponential
B. Parabolic
C. Linear
D. Cubic

A. Specific humidity
B. Partial pressure of vapour
C. Both A. and B.
D. Neither A. nor B.