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Phase Equilibrium

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

A solution that obeys Raoult's law is

a)

ideal

b)

normal

c)

saturated

d)

all of these

2.

Example of maximum Boiling azeotrope

a)

Acetone and benzene

b)

Nitric acid and water

3.

Example of minimum boiling azeotrope

a)

Mixture of ethanol and water

b)

Mixture of acetone and benzene

c)

Mixture of nitric acid and water

4.

Boiling point diagram of minimum boiling azeotrope can be seen for

a)

Real solution with positive deviation

b)

Real solution with negative deviation

5.

An aqueous solution of methanol in water has vapour pressure

a)

equal to that of water

b)

equal to that of methanol

c)

less than that of water

d)

more than that of water

6.

The system that forms minimum boiling azeotrope is

a)

water + nitric acid

b)

ethanol + cyclohexane

c)

n-heptane +n-hexane

d)

chloroform + acetone

7.

An azeotrope occurs, when there is same _______

a)

Temperature

b)

Composition

c)

Volume

d)

Concentration

8.

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

a)

True

b)

False.

9.

A solution of acetone in ethanol is

a)

Shows positive deviation

b)

Shows negative deviation

c)

No deviation

10.

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

a)

Minimum boiling azeotrope

b)

Maximum boiling azeotrope

c)

None of the above