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Chemistry ch. 17
chemical equilibrium
Term | Definition |
---|---|
Chemical equilibrium | a state of dynamic balance where the rate of the forward reaction equals the rate of the reverse reaction |
Le Chatelier's Principle | if a stress is applied to a system at equilibrium, the system readjusts to relieve the stress applied. |
stresses: | 1. concentration of reactants of produts 2. temperature 3. pressure 4. catalysts |
Le Chatelier's Principle predicts that... | in an all-gaseous reaction an increase in the pressure will favour the reaction which takes place with reduction in volume, ie. towards the side with the smaller number of molecules. |
Kc= (equilibrium constant) | [C]^c[D]^d / [A]^a[B]^b (concentration in moles per litre) |