Related Questions

Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which
A A homogeneous solution (say of phenol water) is formed
B Mutual solubility of the two liquids shows a decreasing trend
C Two liquids are completely separated into two layers
D None of these
Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method
A Is more accurate in finding the number of equilibrium stages
B Accounts for the enthalpy changes in the process
C Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method
D All of the above
In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
A Solute concentration
B Temperature
C Both A & B
D Neither A nor B
Which of the following partially miscible liquid pairs has both lower and upper critical solution temperature?
A Water and Phenol
B Aniline and n-hexane
C Glycerine and m-toluene
D Water and diethyl aniline
In triangular co-ordinates, the ternery composition point falls __________ of the triangle.
A In the corners
B Inside
C On the sides
D None of these
For a ternery mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates.
A Binary mixture is represented by the apex
B Binary mixture is represented by any point inside
C Ternery mixture is represented by the sides
D Pure component is represented by the apex
Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
A Carbonate (monohydrate)
B Chloride
C Thiosulphate
D Bisulphite
The electricity bill of a certain establishment is partially fixed and partially varies as the number of units of electricity consumed. Wen in a certain month 540 units are sonsumed. the bill is TK 1800. In another month 620 units are consumed are the bill is Tk 2040. Inayet another month if 500 units are consumed what would be the bill (in Tk) for that month?
A 1950
B 1560
C 1840
D 1680
In liquid-liquid extraction, the number of phases at plait point is
A 1
B 2
C 3
D 4
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?
A 3
B 2
C 1
D 0

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