Question

List out the postulates of kinetic theory of gases​

Answer 1

Answer:

1 The molecules in a gas are small and ve., far apart. Most of the volume which a gas occupies is empty space.

2 Gas molecules are in constant random motion. Just as many molecules are moving in one direction as in any other.

3 Molecules can collide with each other and with the walls of the container. Collisions with the walls account for the pressure of the gas.

4 When collisions occur, the molecules lose no kinetic energy; that is, the collisions are said to be perfectly elastic. The total kinetic energy of all the molecules remains constant unless there is some outside interference.

5 The molecules exert no attractive or repulsive forces on one another except during the process of collision. Between collisions, they move in straight lines.

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Answer 2

The kinetic theory of gas postulates is useful in the understanding of the macroscopic properties from the microscopic properties.

Gases consist of a large number of tiny particles (atoms and molecules). These particles are extremely small compared to the distance between the particles. The size of the individual particle is considered negligible and most of the volume occupied by the gas is empty space.

These molecules are in constant random motion which results in colliding with each other and with the walls of the container. These collisions with the walls cause the pressure exerted by the gas.

The collisions between the molecules and with the walls are perfectly elastic. That means when the molecules collide they do not lose kinetic energy. Molecules never slow down and will stay at the same speed.

The collisions between the molecules and with the walls are perfectly elastic. That means when the molecules collide they do not lose kinetic energy. Molecules never slow down and will stay at the same speed.The average kinetic energy of the gas particles changes with temperature. i.e., The higher the temperature, the higher the average kinetic energy of the gas.

The molecules do not exert any force of attraction or repulsion on one another except during collisions.