Question

Postulates of kinetic energy

Answer 1

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

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

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

•  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 with the

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