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Le Chatlier’s Principle

Le Chatlier’s Principle. Subliminal message!. Chemistry is great!. Le Chatlier’s Principle. When an equilibrium is disrupted, the reaction will shift to restore equilibrium. Subliminal message!. Chemistry is great!. Le Chatlier’s Principle. The equilibrium can be affected by:

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Le Chatlier’s Principle

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  1. Le Chatlier’s Principle

  2. Subliminal message! • Chemistry is great!

  3. Le Chatlier’s Principle When an equilibrium is disrupted, the reaction will shift to restore equilibrium.

  4. Subliminal message! • Chemistry is great!

  5. Le Chatlier’s Principle The equilibrium can be affected by: - adding substances – the reaction will shift away from the change. - removing substances – the reaction will shift toward the change.

  6. Subliminal message! • Chemistry is great!

  7. Le Chatlier’s Principle - temperature – acts like a reactant/product - container size – smaller container will shift toward small number of molecules - Adding inert gasses – no effect

  8. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 1) If pressure of A is increased

  9. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol • If pressure of A is increased Reaction will shift right

  10. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 2) The temperature of the reaction is increased

  11. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 2) The temperature of the reaction is increased Reaction will shift left

  12. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 3) A catalyst is added to the system

  13. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 3) A catalyst is added to the system No change in the equilibrium

  14. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 4) More compound B is steadily added to the reaction chamber

  15. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol • More compound B is steadily added to the reaction chamber The reaction will shift right

  16. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 5) An inhibitor is added

  17. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol • An inhibitor is added No shift in equilibrium

  18. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 6) Argon gas is added to the reaction chamber

  19. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol • Argon gas is added to the reaction chamber No shift in equilibrium

  20. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol 7) The container is made smaller

  21. Subliminal message! • Wednesdays and fridays at lunch in room 122

  22. Le Chatlier’s Principle For example: Consider the reaction A + B  C H = -453 kJ/mol • The container is made smaller the reaction will shift right

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