Learning objective
State that pressure of reacting gases affects reaction rate.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Rate of reaction
Subtopic
Factors which affect rates of chemical reactions
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Quick explanation
State that pressure of reacting gases affects reaction rate
- This point belongs to Rate of reaction, especially Factors which affect rates of chemical reactions.
- You need to be able to state that pressure of reacting gases affects reaction rate.
- The key ideas to know are rate and pressure.
- 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 Factors which affect rates of chemical reactions to exam-style questions, flashcards, and revision notes for Rate of reaction.
Quick student answer
Why does pressure of reacting gases affects reaction rate?
Direct answer
In Chemistry, this page helps you answer questions about pressure of reacting gases affects reaction rate within Rate of reaction. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are Pressure and Reaction Rate.
Key terms
- Pressure: The force exerted by gas particles per unit area, affecting the rate of reaction. In AQA GCSE Chemistry 8462, use this term specifically when explaining rate of reaction, collision theory, reversible reactions, equilibrium, catalysts, graph gradients, or Le Chatelier's principle.
- Reaction Rate: The speed at which reactants are consumed or products are formed in a chemical reaction. In AQA GCSE Chemistry 8462, use this term specifically when explaining rate of reaction, collision theory, reversible reactions, equilibrium, catalysts, graph gradients, or Le Chatelier's principle.
Common trap
Misunderstanding Pressure Effects: Emphasize that increasing pressure increases the concentration of gas molecules, leading to more frequent collisions, which generally increases the reaction rate.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Define rate of reaction as the speed at which reactants are used up or products are formed.
Calculating rates of reactions
- Calculate mean rate of reaction using quantity of reactant used divided by time taken. (MS 1a)
Calculating rates of reactions
- Calculate mean rate of reaction using quantity of product formed divided by time taken. (MS 1a)
Calculating rates of reactions
- Use units such as g/s, cm3/s or mol/s for rate of reaction calculations.
Calculating rates of reactions
- Interpret rate data from tables and graphs.
Calculating rates of reactions