Effect of Conditions

At equilibrium, the reaction of

has produced concentrations of A, B, and C that obey the equilibrium constant equation.

If additional reagent A is added to the system at equilibrium, the instantaneous concentration of A is too large; Q is too small and A and B are consumed to produce more C.

If additional product C is added to the system at equilibrium, the instantaneous concentration of C is too large; Q is too large and C reverts back to form A and B.

Le Chatelier's Principle requires that the system undergo reaction in a manner to change the concentrations and pressure so that the disturbance is removed.


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