Equilibrium (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of system is required for equilibrium to occur?
What type of system is required for equilibrium to occur?
A closed system
At equilibrium, what is true about reaction rates?
At equilibrium, what is true about reaction rates?
Forward rate equals backward rate
Do reactions stop when equilibrium is reached?
Do reactions stop when equilibrium is reached?
No, both continue at equal rates
What happens to concentrations at equilibrium?
What happens to concentrations at equilibrium?
They remain constant
Must the amounts of reactants and products be equal at equilibrium?
Must the amounts of reactants and products be equal at equilibrium?
No, only the rates are equal
In the reaction , what product forms?
In the reaction , what product forms?
Hydrogen iodide
When equilibrium lies to the left, what is observed?
When equilibrium lies to the left, what is observed?
More reactants than products
When equilibrium lies to the right, which reaction is favoured?
When equilibrium lies to the right, which reaction is favoured?
The forward reaction
What observable sign indicates equilibrium has been reached?
What observable sign indicates equilibrium has been reached?
Colour changes stop
What happens to gas volumes when equilibrium is reached?
What happens to gas volumes when equilibrium is reached?
They become steady
In the example, when is equilibrium reached?
In the example, when is equilibrium reached?
When HI forms at same rate it breaks down
What does equilibrium in the middle position mean?
What does equilibrium in the middle position mean?
Roughly equal amounts of both