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
In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The perimeter is 40 cm. the length of the smallest side of the triangle PQR is:
A 6 cm
B 8 cm
C 9 cm
D 10 cm
In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in
A Condenser
B Evaporator
C Absorber
D None of these
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
A Rourkela (under SAIL)
B Bokaro (under SAIL)
C Sindri (under FCI)
D Baroda (under G.S.F.C.)
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
Cooling water is required for following equipment in ammonia absorption plant
A Condenser
B Evaporator
C Absorber
D Condenser, absorber and separator (rectifier)
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively
A Water and water
B Water and lithium bromide
C Ammonia and lithium bromide
D Ammonia and water
Ammonia absorption refrigeration cycle requires
A Very little work input
B Maximum work input
C Nearly same work input as for vapour compression cycle
D Zero work input
The evolution of heat of solution takes place in ammonia absorption plant when
A Ammonia vapour goes into solution
B Ammonia vapour is driven out of solution
C Lithium bromide mixes with ammonia
D Weak solution mixes with strong solution
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
A 60
B 30
C 95
D 100

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