Related Questions

In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.
A Liquid
B Gas
C Both A & B
D Neither A nor B
During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the
A Gas film
B Liquid film
C Liquid-gas interface
D None of these
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be
A 1
B > 1
C ≤ 1
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 accompanied with chemical reaction is exemplified by the absorption of
A Ammonia in water
B Benzol present in coke oven gas by wash oil
C SO2 in alkaline solution
D All of the above
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
A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 2500 gallons of water evaporate from the tank, the remaining solution will be approximately what percent sodium chloride?
A 1.25%
B 3.75%
C 6.25%
D 6.67%
Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is
A Not possible in the second case unless vacuum is applied
B Not possible in the second case unless high pressure is applied
C More readily done in the second case compared to first one
D None of these
Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium
A Carbonate
B Phosphate
C Bicarbonate
D Silicate
In the middle of around pool lies a water-lily . The water-lily doubles in size every day . After exactly 20 days the complete pool will be covered by the lily. After how days will half of the pool be covered by water-lily ?
A 3
B 7
C 10
D 15

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