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