Question

How are gas particles described according to the kinetic molecular theory?

Answer 1

Hint:The classical thermodynamic behavior of gases is given by the kinetic theory of gases. The kinetic theory explains the physical behavior of gases. If one is aware of the assumptions of the kinetic molecular theory, this problem can be easily solved. This theory explains the macroscopic properties of gases such as pressure, temperature, and volume.

 Complete step by step solution:
Some of the basic assumptions of the kinetic molecular theory are
Compared to the volume of the gas, the volumes occupied by individual particles are negligible.
The particles are always in a state of random motion and they move in straight lines unless they collide with each other.
The particles do not exert an attractive force on each other or to their surroundings.
When collisions occur, they are elastic collisions. Also, the total kinetic energy is conserved.
The average kinetic energy is directly proportional to absolute temperature. Therefore if the temperature reduces to absolute zero all motion will cease.
According to the kinetic theory, gas particles are always in a state of constant random motion. Each one of these gas particles travels at various speeds and constantly collides with each other and also changes directions. The molecular theory mentions that particles are always in motion and that they exhibit elastic collisions.

Note:To explain Boyle’s and Charles's law, the kinetic molecular theory can be used. Molecular theory is also used to explain the physical behavior of gas. In the above passage, we have discussed the basic assumptions of kinetic molecular theory and how gas particles are described according to the kinetic molecular theory.