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