Reversibility & Equilibrium (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What happens when a reversible reaction reaches equilibrium?
What happens when a reversible reaction reaches equilibrium?
Forward & backward rates become equal
Why must equilibrium occur in a closed system?
Why must equilibrium occur in a closed system?
To prevent reactants/products escaping
What happens to concentrations of substances at equilibrium?
What happens to concentrations of substances at equilibrium?
They stay constant
What does 'dynamic equilibrium' mean?
What does 'dynamic equilibrium' mean?
Both reactions still happening
What does 'position of equilibrium' indicate?
What does 'position of equilibrium' indicate?
Whether more reactants or products present
If equilibrium position is 'to the right', what does this mean?
If equilibrium position is 'to the right', what does this mean?
Mainly products present
At equilibrium, what must be equal?
At equilibrium, what must be equal?
The rates of both reactions
What does the symbol ⇌ show?
What does the symbol ⇌ show?
Reaction can go in both directions
In a reversible reaction at equilibrium, which reactions occur?
In a reversible reaction at equilibrium, which reactions occur?
Both forward & backward simultaneously
What is a closed system?
What is a closed system?
Where no substances can escape