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