Explain the effect of change in concentration on systems at equilibrium with the help of Le-Chatelier's principle.
The effect of change in concentration on systems at equilibrium can be explained as follows:
1) When the concentration of reactant(s) is increased, the system tries to reduce their concentration by favoring the forward reaction.
2) When the concentration of product(s) is increased, the system tries to reduce their concentration by favoring the backward reaction.
3) When the concentration of reactant(s) is decreased, the system tries to increase their concentration by favoring the backward reaction.
4) When the concentration of product(s) is decreased, the system tries to increase their concentration by favoring the forward reaction.
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