Learning objective
Compare experimental and theoretical lattice enthalpies.
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
Thermodynamics (A-level only)
Subtopic
Born-Haber cycles (A-level only)
Study support
Understand this objective
Quick explanation
Compare experimental and theoretical lattice enthalpies
- This point belongs to Thermodynamics (A-level only), especially Born-Haber cycles (A-level only).
- You need to be able to compare experimental and theoretical lattice enthalpies.
- The key ideas to know are experimental, enthalpies, and lattice.
- 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 Born-Haber cycles (A-level only) to exam-style questions, flashcards, and revision notes for Thermodynamics (A-level only).
Quick student answer
Which of the following statements about lattice enthalpy is true?
Direct answer
C) Lattice enthalpy is the energy change when one mole of an ionic compound is formed from its gaseous ions.
Key terms
- Lattice Enthalpy: The energy change when one mole of an ionic compound is formed from its gaseous ions.
- Born-Haber Cycle: A thermodynamic cycle that relates the lattice enthalpy of an ionic compound to other enthalpy changes.
Common trap
Confusing lattice enthalpy with enthalpy of formation: Lattice enthalpy specifically refers to the formation of an ionic solid from gaseous ions, while enthalpy of formation refers to the formation from standard states.
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
- Construct Born-Haber cycles for ionic compounds.
Born-Haber cycles (A-level only)
- Calculate lattice enthalpy from Born-Haber data.
Born-Haber cycles (A-level only)
- Use lattice enthalpy comparisons to infer covalent character.
Born-Haber cycles (A-level only)
- Explain entropy as a measure of dispersal of energy or disorder.
Entropy and Gibbs free energy (A-level only)
- Calculate entropy changes from standard entropy data.
Entropy and Gibbs free energy (A-level only)