Question

Describe in Brief about "Le - Chatelier's Principle"

Mainly about :-

1) Change in Concentration
2) Effect of Pressure and Volume
3) Effect of Temperature
4) Effect of Inert Gas​

Answer 1

EXPLANATION:

The qualitative effect of the above changes on the composition of an equilibrium mixture can be described by Le-chateliers principal.

It starts that,

If a system at equilibrium is subjected to a change of any one of the factors such as concentration,pressure or temperature,the system adjusts it self in such a way as to reduce the effects of that change.

Answer 2

Le-Chatelier's Principle

If a reaction is at equilibrium and we alter the conditions so as to create a new equilibrium state, then the composition of the system will tend to change until that new equilibrium state is attained. (We say "tend to change" because if the reaction is kinetically inhibited, the change may be too slow to observe or it may never take place.) In 1884, the French chemical engineer and teacher Henri Le Chatelier (1850-1936) showed that in every such case, the new equilibrium state is one that partially reduces the effect of the change that brought it about.

This law is known to every Chemistry student as the Le Chatelier principle. His original formulation was somewhat complicated, but a reasonably useful paraphrase of it reads as follows:

Le Chatelier principle: If a system at equilibrium is subjected to a change of pressure, temperature, or the number of moles of a component, there will be a tendency for a net reaction in the direction that reduces the effect of this change.

To see how this works (and you must do so, as this is of such fundamental importance that you simply cannot do any meaningful chemistry without a thorough working understanding of this principle), look again at the hydrogen iodide dissociation reaction