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