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