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