Curriculum & Exam Preparation Note: Regular practice of NCERT textbook exercises and chapter-end questions establishes strong conceptual clarity for primary and secondary examinations.
- A gas consists of large number of tiny particles called molecules.
Volume occupied by gas molecules, is negligible as compared to the total volume of gas. - here is continuous rapid random motion of gas molecules. The molecules collide with each other and against walls of container.
- here is continuous rapid random motion of gas molecules. The molecules collide with each other and against walls of container.
- There are no attractive forces between the molecules of gas.
- The pressure exerted by a gas is due to bombardment of gas molecules against the walls of the container.
- The different molecules possess different velocities and hence different energies. The average K.E. is directly proportional to absolute temperature.