Le chateliers principle

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ADDING Reactant

The system shifts to consume excess reactant and makes more product to restore equilibrium.

K is constant

REMOVING Reactant

The system shifts to make more reactant and consume product to restore equilibrium.

K is constant

DILUTION on reactant

The system shifts to make more reactant and consume product to restore equilibrium.

• all morality values decrease

  • impact will be greatest on side with more aqueous species

K is constant

INCREASE in pressure (decrease volume)

Makes system shift to the side with fewer gas molecules

DECREASE pressure (increase volume)

Makes system shift to side with more gas molecules

INCREASE in temperature on an exothermic reaction

System shifts to reactant sides (endothermic path)

K decreases

INCREASE in temperature on an endothermic reaction

System shifts to product sides (exothermic path).

K increases.

DECREASE in temperature on an exothermic reaction

System shifts to products (endothermic path) K increases

DECREASE in temperature on an endothermic reaction

System shifts to reactants (exothermic path) K decreases