Equilibrium (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What defines equilibrium in a reversible reaction?
What defines equilibrium in a reversible reaction?
Forward rate equals backward rate
What happens to concentrations at equilibrium?
What happens to concentrations at equilibrium?
They remain constant over time
Which direction do irreversible reactions proceed in?
Which direction do irreversible reactions proceed in?
Forward direction only
What can reversible reactions do?
What can reversible reactions do?
Proceed in both directions
When is equilibrium established in a reversible reaction?
When is equilibrium established in a reversible reaction?
When both reaction rates are equal
Why must reversible reactions occur in a sealed container to reach equilibrium?
Why must reversible reactions occur in a sealed container to reach equilibrium?
Prevents escape of substances
At equilibrium, must the concentrations of reactants and products be equal?
At equilibrium, must the concentrations of reactants and products be equal?
No, they need not be equal
What do the relative amounts of reactants and products indicate?
What do the relative amounts of reactants and products indicate?
Position of equilibrium
What can cause the position of equilibrium to shift?
What can cause the position of equilibrium to shift?
Changes in conditions
What happens when the position of equilibrium shifts?
What happens when the position of equilibrium shifts?
Concentrations alter