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