Learning objective
Deduce orders of reaction from initial rate data.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Rate equations (A-level only)
Subtopic
Rate equations and orders (A-level only)
Study support
Understand this objective
Quick explanation
Deduce orders of reaction from initial rate data
- This point belongs to Rate equations (A-level only), especially Rate equations and orders (A-level only).
- You need to be able to deduce orders of reaction from initial rate data.
- The key ideas to know are order and initial rate.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Rate equations and orders (A-level only) to exam-style questions, flashcards, and revision notes for Rate equations (A-level only).
Quick student answer
Which of the following statements about the rate of a reaction is true?
Direct answer
The rate of a reaction can be affected by temperature and concentration.
Key terms
- Rate constant (k): The rate constant is a proportionality factor in the rate equation that is specific to a particular reaction at a given temperature.
- Order of reaction: The order of reaction is the sum of the powers of the concentration terms in the rate equation, indicating how the rate is affected by the concentration of reactants.
Common trap
Confusing rate constant with rate: Remember that the rate constant is a fixed value for a given reaction at a specific temperature, while the rate can change based on reactant concentrations.
Related questions
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Flashcard prompts
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Revision tools
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Practice Questions0 linked questions
Revision notestopic notes
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Open revision notesRelated learning objectives
- Write rate equations using experimentally determined orders.
Rate equations and orders (A-level only)
- Calculate rate constants and their units.
Rate equations and orders (A-level only)
- Use half-life evidence for first-order reactions.
Rate equations and orders (A-level only)
- Interpret concentration-time graphs.
Rate equations and orders (A-level only)
- Explain the rate-determining step in a mechanism.
Mechanisms and rate-determining steps (A-level only)