Question

Choose the correct statement with respect to the vapour pressure of a liquid among the following :

A. Increases linearly with increasing temperature
B. Increases non-linearly with increasing temperature  
C. Decreases linearly with increasing temperature
D. Decreases non-linearly with increasing temperature
Answer :   Increases non-linearly with increasing temperature
Solution :
If we plot a graph between the vapour pressure and the temperature. We would get a curve that rises faster as $$T$$ increases, giving a curved line
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Releted MCQ Question on
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Releted Question 1

An azeotropic solution of two liquids has boiling point lower than either of them when it

A. shows negative deviation from Raoult’s law
B. shows no deviation from Raoult’s law
C. shows positive deviation from Raoult’s law
D. is saturated
Releted Question 2

For a dilute solution, Raoult’s law states that :

A. the lowering of vapour pressure is equal to the mole fraction of solute.
B. the relative lowering of vapour pressure is equal to the mole fraction of solute.
C. the relative lowering of vapour pressure is proportional to the amount of solute in solution.
D. the vapour pressure of the solution is equal to the mole fraction of solvent.
Releted Question 3

When mercuric iodide is added to the aqueous solution of potassium iodide then

A. freezing point is raised.
B. freezing point is lowered.
C. freezing point does not change.
D. boiling point does not change.
Releted Question 4

Which of the following $$0.1 M$$  aqueous solutions will have the lowest freezing point?

A. Potassium sulphate
B. Sodium chloride
C. Urea
D. Glucose

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