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