Chemistry Vapour Pressure Liquid Solutions Online Exam Quiz
Chemistry Vapour Pressure Liquid Solutions GK Quiz. Question and Answers related to Chemistry Vapour Pressure Liquid Solutions. MCQ (Multiple Choice Questions with answers about Chemistry Vapour Pressure Liquid Solutions
What is the boiling point of water?
Options
A : 100 °F
B : 671.67 °R
C : 373 °C
D : 212 °r
If ethanol and chloroform are present in a molar ratio of 2:3 then what is the vapor pressure at 20° C if vapor pressures of pure liquids are 5.95 kPa and 21.17 kPa, respectively?
Options
A : 16.692 kPa
B : 15.082 kPa
C : 8.731 kPa
D : 12.038 kPa
“Total pressure of gas mixture is the sum of individual pressures”. Which law is reflected in this statement?
Options
A : Amagat’s law
B : Raoult’s law
C : Dalton’s law
D : Henry’s law
What phenomenon occurs when a solution’s equilibrium vapor pressure equals the surrounding atmospheric pressure?
Options
A : Boiling
B : Melting
C : Condensation
D : Sublimation
What does the vapor pressure of solvent containing a non-volatile solute, in a closed system directly vary with?
Options
A : Mole fraction of solute
B : Mole fraction of solvent
C : Molarity of solute
D : Molarity of solvent
What deviation is shown by a mixture of equimolar phenol and aniline?
Options
A : Negative deviation
B : Positive deviation
C : No deviation
D : Alternating positive and negative
If a mixture of A and B boils at a temperature lower than the boiling point of either of the components, what kind of deviation does the mixture show?
Options
A : No deviation
B : Maximum and minimum deviation from Raoult’s law
C : Negative deviation from Raoult’s law
D : Positive deviation from Raoult’s law
Which of the following is caused by the addition of a non-volatile solute to a solvent?
Options
A : Reduction in equilibrium of vapor pressure of solution
B : Increase in melting point of the solution
C : Decrease in the boiling point of the solution
D : Osmosis of solute in the solution
A volatile liquid with vapor pressure 85 kPa (at sea level, 25° C) is taken to the peak of Mt. Everest. Which of the following is true?
Options
A : The vapor pressure of the solution decreases
B : The solution will condense quickly than when at sea level
C : The solution will vaporize quickly than when at sea level
D : The vapor pressure of the solution increases
Considering a binary solution of components A and B obeys Raoult’s law, which of the following is true?
Options
A : Total vapor pressure cannot be related to mole fraction of only one component
B : Total vapor pressure of one component varies non-linearly with another component
C : A plot of vapor pressures of both components gives a linear plot
D : Total vapor pressure of solution always decreases with increase in mole fraction of a component
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