Reversibility & Equilibrium (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What defines a state of equilibrium in a reversible reaction?
What defines a state of equilibrium in a reversible reaction?
Forward rate equals backward rate
What happens to concentrations of reactants and products at equilibrium?
What happens to concentrations of reactants and products at equilibrium?
They remain constant over time
In which direction do irreversible reactions proceed?
In which direction do irreversible reactions proceed?
Forward direction only
What can reversible reactions do that irreversible reactions cannot?
What can reversible reactions do that irreversible reactions cannot?
Proceed in both directions
What condition is needed for reversible reactions to reach equilibrium?
What condition is needed for reversible reactions to reach equilibrium?
Must occur in a sealed container
When is equilibrium established in a reversible reaction?
When is equilibrium established in a reversible reaction?
When both reaction rates are equal
Are concentrations of reactants and products equal at equilibrium?
Are concentrations of reactants and products equal at equilibrium?
Not necessarily equal
What do the relative amounts of reactants and products indicate?
What do the relative amounts of reactants and products indicate?
Position of equilibrium
Can the position of equilibrium change?
Can the position of equilibrium change?
Yes, with changes in conditions
What does a shift in equilibrium position alter?
What does a shift in equilibrium position alter?
Concentrations of species