Explain the simplicity of the behavior of gases.

(N/A) The simplicity of the behavior of gases is due to the fact that the forces of interaction between their molecules are negligible.
Their behavior is governed by the same common general laws,which were discovered as a result of their experimental studies.
These laws represent relationships between measurable properties of gases. Some of these properties,such as pressure $(P)$,volume $(V)$,temperature $(T)$,and mass $(m)$,are very important because the relationships between these variables describe the state of the gas.