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Le Chatelier's Principle Lesson 2

Le Chatelier's Principle Lesson 2. Le Chatelier’s Principle If a system in equilibrium is subjected to a change processes occur that oppose the imposed change and the system shifts to reach a new state of equilibrium . ⇌

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Le Chatelier's Principle Lesson 2

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  1. Le Chatelier's Principle Lesson 2

  2. Le Chatelier’s Principle If a system in equilibrium is subjected to a change processes occur that oppose the imposed change and the system shifts to reach a new state of equilibrium. ⇌ Chemists can use this principle to shift the reaction so that there are more Products or Reactants. reactants products

  3. Le Chatelier’s Principle If a system in equilibrium is subjected to a change processes occur that oppose the imposed change and the system shifts to reach a new state of equilibrium. ⇌ Chemists can use this principle to shift the reaction so that there are more Products or Reactants. products reactants

  4. Le Chatelier’s Principle If a system in equilibrium is subjected to a change processes occur that oppose the imposed change and the system shifts to reach a new state of equilibrium. ⇌ Chemists can use this principle to shift the reaction so that there are more products or Reactants. reactants products

  5. 1.1 Increasing the temperature always shifts a reaction in the direction that consumes energy. A + B ⇌ C + Energy

  6. 1.2 Increasing the temperature always shifts a reaction in the direction that consumes energy. A + B + Energy⇌ C

  7. 1.3 Decreasing the temperature always shifts a reaction in the direction that produces energy. A + B + Energy⇌ C

  8. 2.1 Adding a reactantor productshifts the reaction in the opposite direction. A + B ⇌ C + Energy reaction- shift right stress- increase [A]

  9. 2.2 Adding a reactantor productshifts the reaction in the opposite direction. A + B ⇌ C + Energy stress- increase [C] stress- increase [C]

  10. 2.3 Removing a reactantor productshifts the reaction in the opposite direction. A + B ⇌ C + Energy reaction- shift left stress- decrease [A]

  11. 2.4 Removing a reactantor productshifts the reaction in the opposite direction. A + B ⇌ C + Energy reaction- shift right stress- decrease [C]

  12. 3.1 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  13. 3.1 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  14. 3.1 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l) no shift!

  15. 3.2 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  16. 3.2 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l) shifts to products

  17. 3.3 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  18. 3.3 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l) shifts to products

  19. 3.4 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  20. 3.4 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l) shifts to reactants

  21. 3.5 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  22. 3.5 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l) shifts to products

  23. 3.6 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l)

  24. 3.6 Only changes to (aq) and (g) reactants or products cause the equilibrium to shift (s) and (l) do not! You can change the concentrations of (aq) and (g) (s) and (l) have constantconcentrations CaCO3(s) + 2H+(aq) + 2Cl-(aq)⇌ Ca2+(aq) + 2Cl-(aq)+ CO2(g) + H2O(l) noshift- liquids have constant concentration-drop in the bucket syndrome!

  25. 4.1 Adding a catalyst does not shift the equilibrium, however it does allow you to reach equilibrium faster and both the forward and reverse rates are increased by the same amount.

  26. 4.1 Adding a catalyst does not shift the equilibrium, however it does allow you to reach equilibrium faster and both the forward and reverse rates are increased by the same amount. reactants products

  27. 4.1 Adding a catalyst does not shift the equilibrium, however it does allow you to reach equilibrium faster and both the forward and reverse rates are increased by the same amount. reactants reactants products products

  28. 5.1 Adding an inert (non-reactive) gas does not shift the equilibrium. 2NH3(g)⇌ N2(g) + 3H2(g)

  29. 5.1 Adding an inert (non-reactive) gas does not shift the equilibrium. 2NH3(g)⇌ N2(g) + 3H2(g) Adding Ne(g)

  30. 5.1 Adding an inert (non-reactive) gas does not shift the equilibrium. 2NH3(g)⇌ N2(g) + 3H2(g) Adding Ne(g) No shift!

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