A. Recovery of valuable solvent vapors from dilute mixture with air and other gases
B. Dehumidification of air and gas
C. Removal of objectionable odour and impurities from industrial gases
D. Decolouration of yellow glycerine
0
The Knudsen diffusivity is proportional to (where, T = absolute temperature) ______________________?
0
A natural draft cooling tower is filled with wooden grids, which covers about _________________ percent of the tower height?
A. √T
B. T2
C. T
D. T4
0
With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop___________________?
A. 10-15
B. 30-40
C. 70-80
D. 90-100
0
For the flow of gases through a capillary, with increase in temperature, the permeability __________________ as per Knudsen law?
A. Decreases
B. Remains unchanged
C. Increases
D. Decreases exponentially
0
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the _______________ moisture?
A. Increases
B. Decreases
C. Remain same
D. Either A. or B.; depends on the gas
0
For absorbing a sparingly soluble gas in a liquid, the_____________________?
A. Free
B. Unbound
C. Equilibrium
D. Bound
0
The relative volatility of a binary mixture at the Azeotropic composition is _______________________?
A. Gas side co-efficient should be increased
B. Liquid side coefficient should be increased
C. Gas side co-efficient should be decreased
D. Liquid side co-efficient should be decreased
0
Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time) ?
A. 1
B. > 1
C. 0
D. ∞
0
The equation, NA = (DAB . Pt /RTZ) (y1 – y2) is for _______________________?
A. (De.t)1/2
B. (De/t)1/2
C. (4De/πt)1/2
D. (4De/t)
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