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