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