Chemistry GCSE
Rate of Reaction
What Rate of Reaction means in Chemistry GCSE, as defined for Pearson Edexcel.
Definition of Rate of Reaction
The change in concentration (or amount) of a reactant or product per unit time.
Topics that use Rate of Reaction
- Rates of reaction and energy changes (Pearson Edexcel GCSE)
Related terms
Using Rate of Reaction in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry GCSE terms7 days Premium · Then free forever · No card, no charge