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.Management Sciences
Category: Mass Transfer
Freundlich equation applies to the adsorption of solute from_____________________?
A. Dilute solutions, over a small concentration range
B. Gaseous solutions at high pressure
C. Concentrated solutions
D. None of these
Channelling is most severe_____________________?
A. In towers packed with stacked packing
B. In towers packed randomly with crushed solids
C. In dumped packing of regular units
D. At very high liquid flow rate
Which of the following same diameter columns gives lowest pressure drop per unit height ?
A. Bubble-cap column
B. Sieve-plate column
C. Packed column (stacked)
D. Randomly packed column
Boiling point diagram is not affected by the ambient______________________?
A. Pressure
B. Humidity
C. Temperature
D. Both B. and C.
The operating line for an absorber is curved, when plotted in terms of _______________________?
A. Mole fractions
B. Mole ratios
C. Partial pressure
D. Mass fractions
Flooding in a column results due to___________________?
A. High pressure drop
B. Low pressure drop
C. Low velocity of the liquid
D. High temperature
In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at ________________ reflux ?
A. Total
B. Minimum
C. Operating
D. Maximum permissible
For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a ____________ of the equilateral triangular co-ordinates?
A. Binary mixture is represented by the apex
B. Binary mixture is represented by any point inside
C. Ternary mixture is represented by the sides
D. Pure component is represented by the apex
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