Reversible reactions & equilibria
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FlashcardsWhat does ⇌ represent?
That a reaction is reversible
Dynamic equilibrium can only be reached in a…
Closed system
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9 Terms
What does ⇌ represent?
That a reaction is reversible
Dynamic equilibrium can only be reached in a…
Closed system
What are the characteristics of a reaction at dynamic equilibrium?
- Rate of forward reaction = rate of backward reaction
- The concentration of reactants & products remains constant
What is Le Chatelier’s Principle?
When the conditions change in a reaction at equilibrium, the position of equilibrium will shift to counteract the change
How does temperature affect the position of equilibrium?
Increasing temperature → favours endothermic reaction
Decreasing temperature → favours exothermic reaction
How does concentration of reactant affect the position of equilibrium?
Increasing conc of reactant → favours forward reaction
Decreasing conc of reactant → favours backward reaction
How does concentration of product affect the position of equilibrium?
Increasing conc of product → favours backward reaction
Decreasing conc of product → favours forward reaction
How does pressure affect the position of equilibrium?
Increasing pressure → favours reaction that produces less moles of gas
Decreasing pressure → favours reaction that produces more moles of gas
Do catalysts affect the position of equilibrium? Why?
No
This is because catalysts speed up the rate of the forward & backward reaction equally