Phase Equilibrium

A solution that obeys Raoult's law is

• ideal

• normal

• saturated

• all of these

Example of maximum Boiling azeotrope

• Acetone and benzene

• Nitric acid and water

Example of minimum boiling azeotrope

• Mixture of ethanol and water

• Mixture of acetone and benzene

• Mixture of nitric acid and water

Boiling point diagram of minimum boiling azeotrope can be seen for

• Real solution with positive deviation

• Real solution with negative deviation

An aqueous solution of methanol in water has vapour pressure

• equal to that of water

• equal to that of methanol

• less than that of water

• more than that of water

The system that forms minimum boiling azeotrope is

• water + nitric acid

• ethanol + cyclohexane

• n-heptane +n-hexane

• chloroform + acetone

An azeotrope occurs, when there is same _______

• Temperature

• Composition

• Volume

• Concentration

The boiling point of a liquid is the temperature at which the vapour pressure is equal to the external pressure.

• True

• False.

A solution of acetone in ethanol is

• Shows positive deviation

• Shows negative deviation

• No deviation

when water and nitric acid are mixed together , a rise in temperature is observed. what type of Azeotropic mixture is obtained?

• Minimum boiling azeotrope

• Maximum boiling azeotrope

• None of the above