Question

Which one of the following statements regarding Henry’s law is not correct?

A. Higher the value of $${K_H}$$  at a given pressure, higher is the solubility of the gas in liquids.  
B. Different gases have different $${K_H}$$  (Henry’s law constant) values at the same temperature.
C. The partial pressure of the gas in vapour phase is proportional to the mole fraction of the gas in the solution.
D. The value of $${K_H}$$  increases with increase of temperature and $${K_H}$$  is function of the nature of the gas.
Answer :   Higher the value of $${K_H}$$  at a given pressure, higher is the solubility of the gas in liquids.
Solution :
The solubility of the gas in liquids decreases with the increase in value of $$KH$$ at a given pressure.

Releted MCQ Question on
Physical Chemistry >> Solutions

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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