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