EVERYDAY SCIENCE

Detailed explanation-1: -A gas is a substance in which the molecules are separated on the average by distances that are larger compared with the size of the molecule.

Detailed explanation-2: -Gas particles are separated by large distances. The size of gas particles is tiny compared to the distances that separate them and the volume of the container. There are no interactive forces (i.e., attraction or repulsion) between the particles of a gas.

Detailed explanation-3: -The five basic tenets of the kinetic-molecular theory are as follows: A gas is composed of molecules that are separated by average distances that are much greater than the sizes of the molecules themselves. The volume occupied by the molecules of the gas is negligible compared to the volume of the gas itself.

Detailed explanation-4: -In a gas, the distance between molecules, whether monatomic or polyatomic, is very large compared with the size of the molecules; thus gases have a low density and are highly compressible. In contrast, the molecules in liquids are very close together, with essentially no empty space between them.

Detailed explanation-5: -The particles in the solid are touching with very little space between them. The particles in a liquid usually are still touching but there are some spaces between them. The gas particles have big distances between them.