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