Related Questions

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 Decreases
B Remains unchanged
C Increases
D Decreases exponentially
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent
A Increases
B Decreases
C Decreases linearly
D Remains unaffected
With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas
A Increases
B Decreases
C Decreases linearly
D Remains unaffected
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be
A 1
B > 1
C ≤ 1
Which of the following is an undesirable characteristic for the solvent used in gas absorption?
A Low vapor pressure
B Low viscosity
C High gas solubility
D None of these
In a gas-liquid absorption coloumn, for obtaining the maximum absorption efficiency
A Liquid stream should be distributed uniformly
B Gas stream should be distributed uniformly
C Both gas as well as liquid streams should be distributed uniformly
D By passing should be completely avoided
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in
A Decreased solute solubility
B Large minimum liquid to gas (L/G) ratio
C Large number of trays
D All of the above
Compressibility factor of a real gas is the ratio of the actual volume to that predicted by ideal gas law. As the pressure of the gas approaches zero, the compressibility factor approaches
A ∞
B 0
C 1
D 0.24
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.
A Less than
B More than
C Equal to
D Either more or less; depends on the solvent
Selectivity of the solvent used in solvent extraction should be
A 1
B > 1
C 0

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