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Haber Process an Example of Keq

In practice, if a factor such as pressure, temperature or concentration is changed, the equilibrium will automatically shift to oppose that change - if the temperature is increased, the endothermic (reverse) reaction is favored to 'use up' the energy; if the concentration of nitrogen is increased, the forward reaction is favored to use up the nitrogen and return everything to normal.


	The shifting of an equilibrium to oppose any change in conditions is known as Le Chatelier's Principle. In each case, doing the opposite will have the opposite effect (i.e. decreasing pressure will cause an increase in nitrogen and hydrogen as the equilibrium favors the reverse reaction in an attempt to raise the pressure again).