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Learning objective

Required practical 2: measure an enthalpy change.

Read the explanation, check the common trap, then practise with flashcards and questions.

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Topic

AS practical skills and required practical activities

Subtopic

AS required practical activities

Aqa A Level ChemistryPractical skills, mathematical requirements and assessment

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Quick explanation

Required practical 2: measure an enthalpy change

  • This point belongs to AS practical skills and required practical activities, especially AS required practical activities.
  • You need to be able to required practical 2: measure an enthalpy change.
  • The key ideas to know are enthalpy and required practical.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

enthalpyrequired practical

Why it matters

This objective helps connect AS required practical activities to exam-style questions, flashcards, and revision notes for AS practical skills and required practical activities.

Quick student answer

Which of the following is the correct unit for measuring enthalpy change?

Direct answer

kJ/mol

Key terms

  • Calorimetry: The measurement of heat changes during chemical reactions or physical changes.
  • Exothermic reaction: A reaction that releases heat to the surroundings, resulting in an increase in temperature.

Common trap

Incorrectly measuring temperature change: Ensure to measure the temperature immediately after mixing and before any significant heat loss occurs.

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