1. Le Châtelier’s Principle System starts at equilibrium. A change/stress is then made to system at equilibrium. Change in concentration Change in volume Change in pressure Change in Temperature Add Catalyst System responds by shifting to reactant or product side to restore equilibrium.
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6. If heat is one of the products (just like a chemical), it is part of the equilibrium
11. does not shift the position of an equilibrium system
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13. Change Equilibrium Constant Le Châtelier’s Principle Change Shift Equilibrium Concentration yes no Pressure yes no Volume yes no Temperature yes yes Catalyst no no 14.5
![N2 (g) + 3H2 (g) 2NH3(g) Equilibrium shifts left to offset stress Add NH3 Le Châtelier’s Principle If an external stress is applied to a system at equilibrium, the system adjusts in such a way that the stress is partially offset as the system reaches a new equilibrium position. ,[object Object],14.5](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)