AQA GCSE Chemistry (8462) · AQA 8462
4.6 The rate and extent of chemical change
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on The rate and extent of chemical change
- Explain how adding a catalyst increases the rate of a chemical reaction. (4 marks, Explain)
- Explain how increasing the pressure of gaseous reactants increases the rate of reaction. (4 marks, Explain)
- A student says: 'Once a reversible reaction reaches equilibrium, the reaction has stopped.… (4 marks, Explain)
- A reversible reaction takes place in a sealed container. Describe what happens to the conc… (4 marks, Describe)
- A reversible reaction takes place in a closed container. After some time, the system reach… (4 marks, Describe and explain)
- A reversible reaction is carried out in a closed container. The reaction reaches equilibri… (4 marks, Explain)
- Explain what is meant by a reversible reaction reaching equilibrium, and describe what hap… (4 marks, Explain)
- Explain how increasing the concentration of hydrochloric acid increases the rate of its re… (4 marks, Explain)
- Explain how increasing the surface area of a solid reactant increases the rate of reaction… (4 marks, Explain)
- Explain why increasing the temperature of a reaction mixture increases the rate of reactio… (4 marks, Explain)
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