Rates of ReactionExam Focus

Exam Focus: Factors Affecting Rate

Part of Factors Affecting RateGCSE Chemistry

This exam focus covers Exam Focus: Factors Affecting Rate within Factors Affecting Rate for GCSE Chemistry. Revise Factors Affecting Rate in Rates of Reaction for GCSE Chemistry with 20 exam-style questions and 18 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 11 of 13 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.

Topic position

Section 11 of 13

Practice

20 questions

Recall

18 flashcards

🎯 Exam Focus: Factors Affecting Rate

very-high Explain questions (4-6 marks): For temperature questions, ALWAYS mention both effects: faster movement AND more exceed activation energy. One sentence for each.

very-high Graph comparison (3-4 marks): Interpret graphs showing different conditions — steepness, final amount, time to finish.

high Catalyst questions (2-3 marks): Explain by saying "lowers activation energy" not "provides energy to particles".

Key phrase to earn full marks: "...therefore there are more successful collisions per second, so the rate increases."

Keep building this topic

Read this section alongside the surrounding pages in Factors Affecting Rate. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Factors Affecting Rate

Which of the following factors does NOT affect the rate of a chemical reaction?

  • A. Temperature
  • B. Concentration of reactants
  • C. Colour of the reactants
  • D. Surface area of a solid reactant
1 markfoundation

Explain, in terms of particles, why increasing temperature increases the rate of reaction.

3 marksstandard

Quick Recall Flashcards

What are the four factors that affect rate of reaction?
Temperature, Concentration, Surface area, Catalyst
What are enzymes?
Biological catalysts - specific and work at certain temperatures

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