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