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