Embed Size (px)
DESCRIPTION
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: - PowerPoint PPT Presentation
Citation preview
Le Chatlier’s PrincipleLe Chatlier’s Principle
Subliminal message!Subliminal message!
Chemistry is great!Chemistry is great!
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
When an equilibrium is When an equilibrium is disrupted, the reaction will disrupted, the reaction will shift to restore equilibrium. shift to restore equilibrium.
Subliminal message!Subliminal message!
Chemistry is great!Chemistry is great!
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
The equilibrium can be affected by:The equilibrium can be affected by:
- adding substances – the - adding substances – the reaction will shift away from the reaction will shift away from the change.change.
- removing substances – the - removing substances – the reaction will shift toward the reaction will shift toward the change.change.
Subliminal message!Subliminal message!
Chemistry is great!Chemistry is great!
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
- temperature – acts like - temperature – acts like a reactant/producta reactant/product
- container size – smaller - container size – smaller container will shift toward container will shift toward small number of moleculessmall number of molecules
- Adding inert gasses – no - Adding inert gasses – no effecteffect
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 H = -453 kJ/molkJ/mol
1) If pressure of A is increased1) If pressure of A is increased
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
1)1) If pressure of A is increasedIf pressure of A is increased
Reaction will shift rightReaction will shift right
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 H = -453 kJ/molkJ/mol
2) 2) The temperature of the The temperature of the reaction is increased reaction is increased
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
2) 2) The temperature of the The temperature of the reaction is increased reaction is increased
Reaction will shift leftReaction will shift left
Le Chatlier’s PrincipleLe Chatlier’s Principle
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
3) 3) A catalyst is added to the A catalyst is added to the system system
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the reactionFor example: Consider the reaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
3) 3) A catalyst is added to the system A catalyst is added to the system
No change in the equilibriumNo change in the equilibrium
Le Chatlier’s PrincipleLe Chatlier’s Principle
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
4) 4) More compound B is steadily More compound B is steadily added to the reaction chamberadded to the reaction chamber
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
4)4) More compound B is steadily More compound B is steadily added to the reaction chamberadded to the reaction chamber
The reaction will shift rightThe reaction will shift right
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 H = -453 kJ/molkJ/mol
5) 5) An inhibitor is added An inhibitor is added
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
5)5) An inhibitor is addedAn inhibitor is added
No shift in equilibrium No shift in equilibrium
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
6) 6) Argon gas is added to the Argon gas is added to the reaction chamber reaction chamber
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
6)6) Argon gas is added to the Argon gas is added to the reaction chamber reaction chamber
No shift in equilibriumNo shift in equilibrium
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the For example: Consider the reactionreaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
7) 7) The container is made The container is made smaller smaller
Subliminal message!Subliminal message!
Wednesdays and fridays at lunch in Wednesdays and fridays at lunch in room 122room 122
Le Chatlier’s Le Chatlier’s PrinciplePrinciple
For example: Consider the reactionFor example: Consider the reaction
A + B A + B C C H = -453 kJ/molH = -453 kJ/mol
7)7) The container is made smaller The container is made smaller
the reaction will shift rightthe reaction will shift right
