The internal energy of an ideal gas depends upon:

In a thermodynamic system,the working substance is an ideal gas. Its internal energy is in the form of

Write the importance of the kinetic theory of gases.

What is an ideal gas?

State whether the following statements are True or False:
$(i)$ Attractive or repulsive forces act between molecules of an ideal gas.
$(ii)$ The potential energy of an ideal gas is zero.
$(iii)$ Molecules of all gases are the same in size.
$(iv)$ Molecules of an ideal gas are perfectly elastic spheres.

Select the incorrect statement about an ideal gas.