Temperature increases
Temperature decreases
Pressure decreases
Size of adsorbent increases
✅ The correct answer is option B.
Mass Transfer MCQs
An azeotropic mixture is a __________ mixture.
Binary
Ternary
Constant boiling point
None of these
✅ The correct answer is option C.
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.
Oct-15
30-40
70-80
90-100
✅ The correct answer is option A.
In an interphase mass transfer process, the lesser the solubility of a given solute in a liquid, the higher are the chances that the transfer process will be
Liquid phase resistance-controlled
Gas phase resistance controlled
Impossible
Driven by a non-linear driving force
✅ The correct answer is option B.
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is
9.21
4.605
100
0.001
✅ The correct answer is option B.
The vapour pressure exerted by the moisture contained in a wet solid depends upon the
Nature of the moisture
Temperature
Nature of the solid
All of the above
✅ The correct answer is option D.
Which of the following quantities need not be fixed before starting the design of a co-current absorber?
Heat gain or loss
Flow rate of entering liquid
Flow rate of gas
None of these
✅ The correct answer is option B.
Which of the following mixtures does not form an azeotrope at atmosheric pressure?
Water-alcohol
Methyl alcohol-acetone
Butyl acetate-water
None of these
✅ The correct answer is option D.
Rayleigh’s equation applies to __________ distillation.
Continuous
Steam
Differential
Flash
✅ The correct answer is option C.
The humid volume may be increased by increasing the
Temperature at constant humidity
Humidity at constant temperature
Both A & B
Neither A nor B
✅ The correct answer is option C.