11)

In the isolated system temperature of the system

Class 11 Physics

A)

Remains constant

B)

Decreases

C)

Increases

D)

Not confirm

12)

The device used for heat measurement is called as

Class 11 Physics

A)

Calorimeter

B)

Barometer

C)

Thermometer

D)

None

13)

The change of state from solid to liquid is called

Class 11 Physics

A)

Vaporisation

B)

Melting

C)

Fusion

D)

None

14)

The change of state from liquid to solid is called as

Class 11 Physics

A)

Vaporisation

B)

Boiling

C)

Melting

D)

Fusion

15)

The temperature at which the solid and liquid states of the substance is in thermal equilibrium with each other is called as

Class 11 Physics

A)

Melting point

B)

Freezing point

C)

Boiling point

D)

Normal melting point

16)

The melting point of the substance at standard atmospheric pressure is called as

Class 11 Physics

A)

Boiling point

B)

Freezing point

C)

Melting point

D)

Normal melting point

17)

The change of state from liquid to vapour is called as

Class 11 Physics

A)

Melting

B)

Boiling

C)

Freezing

D)

Vaporisation

18)

The temperature at which liquid and the vapour states of the substance co exist is called as

Class 11 Physics

A)

Boiling point

B)

Freezing point

C)

Melting point

D)

None

19)

The temperature and pressure at which the fusion curve, vaporisation curve and sublimation curve meet and all three phases of substance coexist is called as

Class 11 Physics

A)

Freezing point

B)

Melting point

C)

Boiling point

D)

Triple point

20)

The boiling point of the substance at standard atmospheric pressure is called as

Class 11 Physics

A)

Melting point

B)

Freezing point

C)

Boiling point

D)

Normal boiling point