Noun | 1. | distribution law - (chemistry) the total energy in an assembly of molecules is not distributed equally but is distributed around an average value according to a statistical distribution law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics" Boltzmann distribution law, Maxwell-Boltzmann distribution law - (physics) a law expressing the distribution of energy among the molecules of a gas in thermal equilibrium chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions |