Explain the Le-Chateliar Principle

Le – Chateliar principle: When a system is at equilibrium, a change in any one of the factors (such as temperature, pressure, concentration) upon which the equilibrium depends will cause the equilibrium to shift in a direction such that the effect of the change is diminished.

Statement of Le Chatelier’s Principle: “If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium moves to counteract the change.”

Suppose you have an equilibrium established between four substances A, B, C and D.

A + 2B ↔ C + D

Main Three Principles:

  • changing the concentration of one of the components of the reaction
  • changing the pressure on the system
  • changing the temperature at which the reaction is run.