According to kinetic theory of gases at absolute zero of temperature

The kinetic theory of matter explains that matter is made up of tiny particles in constant motion. These particles collide with each other and the walls of their container, resulting in pressure and temperature. The theory describes the relationship between temperature, pressure, and volume of gases.

In Chapter 10 of Class 11 Physics the thermal properties of matter are explored. It covers concepts such as temperature heat and the internal energy of materials. The chapter includes discussions on the laws of thermodynamics specific heat capacity and methods of heat transfer like conduction convection and radiation.