The Effect of Changing Conditions on Equilibrium (AQA GCSE Chemistry Combined Science): Flashcards
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What is Le Chatelier's Principle used for?
What is Le Chatelier's Principle used for?
To predict how equilibrium shifts when conditions change
State Le Chatelier's Principle
State Le Chatelier's Principle
If conditions change, equilibrium shifts to counteract that change
3 main conditions affecting equilibrium
3 main conditions affecting equilibrium
Temperature, pressure, concentration
Equilibrium shift factor: number of moles
Equilibrium shift factor: number of moles
Moles on each side of equation affect shift direction
Equilibrium shift factor: enthalpy
Equilibrium shift factor: enthalpy
Energy changes in reactions affect shift direction
What determines equilibrium shift direction?
What determines equilibrium shift direction?
Which side best counteracts the imposed change
Two directions equilibrium can shift
Two directions equilibrium can shift
Towards reactants or towards products
What does 'counteract' mean in equilibrium?
What does 'counteract' mean in equilibrium?
Oppose or work against the imposed change
What shifts when conditions change?
What shifts when conditions change?
Position of equilibrium