Mass Transfer Quiz 9
1 / 50
Separation of two or more components of a liquid solution cannot be achieved by_____?
2 / 50
Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation ?
3 / 50
Plate efficiency_________?
4 / 50
Rose oil is extracted from rose leaves using _____ distillation?
5 / 50
Separation of two volatile liquids by distillation makes use of their_____?
6 / 50
Pick out the wrong statement?
7 / 50
Schmidt number is given by _____?
8 / 50
Rate of leaching increases with increasing________?
9 / 50
Pressure drop through plate tower as compared to that through packed tower, for the same duty will be_____?
10 / 50
Powdery materials can be guarded against caking tendency on storage by_____?
11 / 50
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their______?
12 / 50
Solvent used in extractive distillation_____?
13 / 50
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the _________ of a fibre ?
14 / 50
Raoult?s law is applicable to the_______?
15 / 50
Positive deviation from Raoult?s law means a mixture whose total pressure is_____?
16 / 50
Priming in a distillation column__________?
17 / 50
Small dia distillation column can be a ___________?
18 / 50
Reverse osmosis is also called__________?
19 / 50
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent ________?
20 / 50
Ponchon-Savarit method analyses the fractional equipment based on_____?
21 / 50
Rayleigh?s equation applies to __________ distillation?
22 / 50
Powdery materials can be guarded against caking tendency on storage by__________?
23 / 50
Rayleigh?s equation applies to _________ distillation?
24 / 50
Removal of _______ exemplifies an adsorption unit operation?
25 / 50
Relative volatility varies with the concentration of component for an ideal solution. The relative volatility of a binary mixture may be defined as the ratio of vapor pressure of component ?A? to that of component ?B?, when__________?
26 / 50
Sodium bicarbonate is produced during soda ash manufacture using a ________ tower?
27 / 50
Separation of the isotopes of helium for scientific investigations is done by_______?
28 / 50
Solvent used in extractive distillation___________?
29 / 50
Plate efficiency in a distillation column is reduced due to the ________ of liquid?
30 / 50
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when______?
31 / 50
Plate efficiency in a distillation column is reduced due to the _______ of liquid?
32 / 50
Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the______?
33 / 50
Raoult?s law applies to the_____?
34 / 50
Radioactive nuclear waste is treated in______?
35 / 50
Rayleigh equation applies to __________ distillation ?
36 / 50
Smoke is an example of _____?
37 / 50
Separation of two volatile liquids by distillation makes use of their__________?
38 / 50
39 / 50
Selectivity of the solvent used in solvent extraction should be)__________?
40 / 50
Schmidt number and Lewis number for pure air at atmospheric conditions are respectively___________?
41 / 50
Reboiler is considered as one theoretical plate, because_______?
42 / 50
Refractory bricks are usually dried in a _________ dryer?
43 / 50
Prandtl number for water at 20?C is about _________?
44 / 50
Relative volatility does not change appreciably with the change in_______?
45 / 50
Raschig ring made of porcelain cannot be used for treating concentrated_____?
46 / 50
Pore size of the molecular sieve 5A is ______ mm ?
47 / 50
Raoult?s law does not apply, when the_____?
48 / 50
Sand is dried in foundries in a ________drier?
49 / 50
Rotary dryers cannot handle ________ materials ?
50 / 50
Relative humidity is the ratio of the________?
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