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