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Lattice energy and Born-Haber cycles: CAIE A‑Level Chemistry questions

Every CAIE A-Level Chemistry exam question on 23.1 Lattice energy and Born-Haber cycles, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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312 questions

  1. Q4(e)

    June 2024 · Paper 4

    3 marks23.1 Lattice energy and Born-Haber cycles
    The whole paper ↗
    June 2024 Paper 4, question 4(e): Suggest the trend in the magnitude of the lattice energies of the metal nitrates, NaNO3(s), Mg(NO3)2(s) and RbNO3(s). Explain your answer. most exothermic least

  2. Q5(a)(i)

    Specimen · Paper 4

    2 marks23.1 Lattice energy and Born-Haber cycles
    The whole paper ↗
    Specimen Paper 4, question 5(a)(i): Explain what is meant by lattice energy. [2]

  3. Q5(a)(ii)

    Specimen · Paper 4

    1 mark23.1 Lattice energy and Born-Haber cycles
    The whole paper ↗
    Specimen Paper 4, question 5(a)(ii): Explain why lattice energy is an exothermic process. [1] Table 5.1 energy change value / kJ mol–1 standard enthalpy change of atomisation of potassium +89 elect

  4. Q5(b)(i)

    Specimen · Paper 4

    3 marks23.1 Lattice energy and Born-Haber cycles
    The whole paper ↗
    Specimen Paper 4, question 5(b)(i): Use relevant data from Table 5.1 to calculate the lattice energy, ∆H ɵ latt, of potassium oxide, K2O(s). Show your working. ∆H ɵ latt, of K2O(s) = kJ mol–1 [3]

  5. Q5(b)(ii)

    Specimen · Paper 4

    1 mark23.1 Lattice energy and Born-Haber cycles
    The whole paper ↗
    Specimen Paper 4, question 5(b)(ii): State how ∆H ɵ lattNa2O(s) differs from ∆H ɵ lattK2O(s). Indicate this by placing one tick () in the appropriate box in Table 5.2. Table 5.2 ∆H ɵ lattNa2O(s) i
All 5 questions on Lattice energy and Born-Haber cycles, as a list
  1. June 2024, Paper 4, Q4(e) (3 marks): Suggest the trend in the magnitude of the lattice energies of the metal nitrates, NaNO3(s), Mg(NO3)2(s) and RbNO3(s). Explain your answer. most exothermic least
  2. Specimen, Paper 4, Q5(a)(i) (2 marks): Explain what is meant by lattice energy. [2]
  3. Specimen, Paper 4, Q5(a)(ii) (1 mark): Explain why lattice energy is an exothermic process. [1] Table 5.1 energy change value / kJ mol–1 standard enthalpy change of atomisation of potassium +89 elect
  4. Specimen, Paper 4, Q5(b)(i) (3 marks): Use relevant data from Table 5.1 to calculate the lattice energy, ∆H ɵ latt, of potassium oxide, K2O(s). Show your working. ∆H ɵ latt, of K2O(s) = kJ mol–1 [3]
  5. Specimen, Paper 4, Q5(b)(ii) (1 mark): State how ∆H ɵ lattNa2O(s) differs from ∆H ɵ lattK2O(s). Indicate this by placing one tick () in the appropriate box in Table 5.2. Table 5.2 ∆H ɵ lattNa2O(s) i

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