Edexcel International GCSE Chemistry
Edexcel International GCSE Chemistry Rates of Reaction Exam Questions
Free Edexcel International GCSE Chemistry exam questions on Rates of Reaction, with mark schemes. Covers factors affecting rate, collision theory and catalysts.
Rates of Reaction exam questions
These packs of real past exam questions cover the whole of Section 3: Physical Chemistry, including Rates of Reaction. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
Edexcel IGCSE Chemistry 4CH1 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About Edexcel International GCSE Chemistry Rates of Reaction
This sub-topic covers how fast reactions go.
What you need to know
- Factors Temperature, concentration, surface area and catalysts.
- Collision theory Frequency and energy of collisions.
- Measuring Gas volume and mass loss.
Common mistakes in Rates of Reaction
- Saying catalysts are used up.
- Saying particles collide harder at higher concentration.
Try two Rates of Reaction exam-style questions
1. Explain why increasing temperature increases rate. (2 marks)
Show the mark scheme answer
Particles move faster so collide more often (1) and more collisions have enough energy (1).
2. State how a catalyst works. (1 mark)
Show the mark scheme answer
Provides a pathway with lower activation energy.
Rates of Reaction FAQs
What does this cover?
Rates, collision theory and catalysts.
Which practical links here?
Investigating the effect of surface area or concentration.
Revise this topic with flashcards: Edexcel IGCSE Chemistry 4CH1 Flashcards, with mark scheme answers for Anki and Quizlet.
