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