Question

What does the kinetic theory say about the size of a gas particle?

Answer 1

1. The kinetic theory explained the gas-particle behavior which is based on the rapid movement of the atoms or molecules.
2. The size of gas particles is assumed to be zero in the kinetic theory of gas.
3. According to the theory, gas particles have no mutual attraction or size. The gas particles have speed and mass, which causes pressure.
4. Molecular size depends on heat conductivity, viscosity, and diffusion.
5. The distance between the molecules is tens of angstroms so that there is no collision.
6. The average distance of a molecule traveling without collision is called the mean free path.
7. Compared to the volume of the gas itself, the size of gas molecules is insignificant.
8. The gas is made up of a vast number of similar molecules traveling in random directions and separated by large distances relative to their size.
9. So, the kinetic theory says that the size of gas particles is assumed to be zero i.e., the size of gas molecules is insignificant as compared to the volume of the gas itself.