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