Learning objective
Required practical 2: measure an enthalpy change.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Topic
A-level practical endorsement and required practical activities
Subtopic
A-level required practical activities
Study support
Understand this objective
Quick explanation
Required practical 2: measure an enthalpy change
- This point belongs to A-level practical endorsement and required practical activities, especially A-level required practical activities.
- You need to be able to required practical 2: measure an enthalpy change.
- The key ideas to know are required practical and enthalpy.
- 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 A-level required practical activities to exam-style questions, flashcards, and revision notes for A-level practical endorsement and required practical activities.
Quick student answer
What is the standard condition for measuring enthalpy changes?
Direct answer
1 atm pressure and 25 °C
Key terms
- Enthalpy (H): A measure of the total energy of a thermodynamic system, including internal energy and the energy required to make room for it by displacing its environment.
- Calorimetry: The science of measuring the heat of chemical reactions or physical changes.
Common trap
Ignoring units in calculations: Always include units in your calculations and ensure they are consistent throughout.
Related questions
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Flashcard prompts
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Revision tools
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Explain that the A-level practical endorsement is assessed separately from written exam grades.
A-level practical endorsement
- Demonstrate competence in apparatus and techniques across the A-level course.
A-level practical endorsement
- Apply risk management and safe working in practical contexts.
A-level practical endorsement
- Evaluate practical procedures using uncertainty, error, accuracy and precision.
A-level practical endorsement
- Required practical 1: make up a volumetric solution and carry out a simple acid-base titration.
A-level required practical activities