Equilibrium
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Created by:
Aaron_1234567890 on May 9, 2012
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7 terms
Terms | Definitions |
|---|---|
 Le Chatelier's Principle | If a system is at equilibrium and a change occurs in any conditions, then the system equilibrium responds to counteract the change as much as possible. |
| Dynamic Equilibrium | The equilibrium that exists in a closed system when the rate of the forward reaction is equal to the rate of the reverse reaction. |
| Effect of Temperature on Equilibrium | Increase Temperature, equilibrium shifts to endothermic reaction Decrease Temperature, equilibrium shifts to exothermic reaction e.g: N₂+ 3H₂↔ 2NH₃ ↑ Temps shift to left ↓ Temp shift to right |
| Effect of Concentration on Equilibrium | Increase concentration of products, equilibrium shifts to reactants. Increase concentration of reactents, equilibrium shifts to products. Equilibrium favours side with less moles |
| Effect of Pressure on Equilibrium | Increase pressure, equilibrium shifts to side with less moles Decrease pressure, equilibrium shifts to side with more moles |
| Effect of Catalyst on Equilibrium | Increases rate of both forward and reverse reactions No change to equilibrium. |
| Compromising yield | High pressure is dangerous and expensive Low temperature too low rate of reaction High temperature push equilibrium in wrong direction |
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