Ebrahim Zarei - Department of Basic Science, Farhangian University, Tehran, Iran
Salma Ehsani - Department of Basic Science, Farhangian University, Tehran, Iran

In this work, in order to correct understanding of Le Châtelier’s principle, it was presented a simple method for teaching of this principle as an important principle in chemistry. Le Châtelier’s principle is not related to the notion that nature favors equilibrium , but rather to the fact that nature favors probable , that is, the dominating statistical distribution. The applied approach uses microscopic descriptors of matter (energy levels and populations) and does not require any assumptions about the nature of A or B (as two parts of internal equilibrium of a system) or the types of processes that interconvert A and B.

Le Châtelier’s Principle; Microscopic Approach; Energy Levels; populations; Distribution