Le Chatelier's Principle (AQA A-Level Chemistry): Flashcards
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Le Chatelier's Principle statement
Le Chatelier's Principle statement
Equilibrium shifts to oppose change in conc., pressure, or temp.
Effect of increasing pressure on equilibrium
Effect of increasing pressure on equilibrium
Shifts to side with fewer gas molecules
Effect of decreasing temp. on exothermic forward reaction
Effect of decreasing temp. on exothermic forward reaction
Shifts to products (exothermic direction)
Effect of increasing reactant concentration
Effect of increasing reactant concentration
Shifts equilibrium right, increases products
Effect of increasing product concentration
Effect of increasing product concentration
Shifts equilibrium left, increases reactants
Does a catalyst affect equilibrium position?
Does a catalyst affect equilibrium position?
No
Catalyst effect on forward and reverse reaction rates
Catalyst effect on forward and reverse reaction rates
Increases both equally
Purpose of compromise conditions in industry
Purpose of compromise conditions in industry
Balance high yield and fast reaction rate
Compromise temperature for ethanol production from ethene
Compromise temperature for ethanol production from ethene
300°C
Catalyst for ethanol production from ethene
Catalyst for ethanol production from ethene
Phosphoric acid