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