A binary liquid mixture of components A and B exhibits an azeotrope at a specific composition. Which of the following statements is ALWAYS true about this azeotropic mixture?
The composition of the vapor phase is identical to the composition of the liquid phase.
The boiling point of the azeotrope is the average of the boiling points of pure A and B.
The azeotrope can be separated into pure A and B by fractional distillation.
The azeotrope always shows a positive deviation from Raoult's Law.
Related Questions
Chromite ore is concentrated by:
Magnetic separation
Froth flotation
Leaching
Gravity separation
Which method is employed for concentrating sulfide ores?
Froth flotation
Magnetic separation
Leaching
Gravity separation
Which concentration term is independent of temperature?
Molarity
Molality
Normality
Formality
Which of the following is NOT a method for expressing the concentration of a solution?
Molarity
Molality
Mass percentage
Density
If 20 g of solute is dissolved in 80 g of solvent, what is the mass percentage of the solute?
20%
80%
25%
40%
Which of the following methods is NOT typically used for concentrating a dilute ore?
Froth flotation
Magnetic separation
Gravity separation
Distillation
What is the molarity of a solution containing 1 mole of solute in 500 mL of solution?
0.5 M
1 M
2 M
4 M
In the leaching of alumina from bauxite, the concentration of the ore is achieved by:
Selective dissolution of alumina
Froth flotation
Magnetic separation
Electrolysis
Which of these is the correct formula for calculating molality?
Moles of solute / Liters of solution
Moles of solute / Kilograms of solvent
Grams of solute / Liters of solution
Grams of solute / Kilograms of solvent
