21)

The branch of physics which deals with the concepts of heat and temperature and the inter conversion of heat and other forms of energy is called as

Class 11 Physics

A)

Fluid dynamics

B)

Thermodynamics

C)

Statistical mechanics

D)

Classical physics

22)

Thermodynamics is the ____ science.

Class 11 Physics

A)

Both a and b

B)

Macroscopic

C)

Microscopic

D)

None

23)

Pressure, volume, temperature, mass are the

Class 11 Physics

A)

Intensive variables

B)

Macroscopic variables

C)

Microscopic variables

D)

Extensive variables

24)

Two systems in thermal equilibrium with a third system separately are in thermal equilibrium with each other, this is the statement of

Class 11 Physics

A)

Zeroth law of thermodynamics

B)

Second law of thermodynamics

C)

First law of thermodynamics

D)

None

25)

The SI unit of specific heat capacity is

Class 11 Physics

A)

J kg-1 K-1

B)

J kg K

C)

J kg-1 K

D)

None