Skip to content
Try on iPad

Enthalpy changes for solids and solutions: Eduqas A‑Level Chemistry questions

Every Eduqas A-Level Chemistry exam question on PI4.1 Enthalpy changes for solids and solutions, 2016–2025, with its mark scheme and examiner’s report.

Find questions1,513
Calculations

1,513 questions

  1. Q15(c)(i)

    June 2024 · Component 1

    2 marksPI4.1 Enthalpy changes for solids and solutions
    The whole paper ↗
    June 2024 Component 1, question 15(c)(i): Use the Born-Haber cycle to calculate the energy required to form a Ca2+(g) ion from a Ca(g) atom. [2] Ca2+(g) + 2CI(g) + 2e– – 698 kJ mol–1 Ca(g) + 2CI(g) 242

  2. Q11(d)(i)

    Autumn 2021 · Component 1

    1 markPI4.1 Enthalpy changes for solids and solutions
    The whole paper ↗
    Autumn 2021 Component 1, question 11(d)(i): Using the data, give a reason why the student states that CuCl2 is more stable than CuCl. [1]

  3. Q9(a)(i)

    June 2018 · Component 1

    1 markPI4.1 Enthalpy changes for solids and solutions
    The whole paper ↗
    June 2018 Component 1, question 9(a)(i): State the value of the standard enthalpy change of lattice breaking of CsCl. [1] kJ mol–1

  4. Q9(a)(ii)

    June 2018 · Component 1

    2 marksPI4.1 Enthalpy changes for solids and solutions
    The whole paper ↗
    June 2018 Component 1, question 9(a)(ii): Calculate the standard enthalpy of formation of CsCl, ΔfHθ. [2] ΔfHθ = kJ mol–1

  5. Q9(a)(iii)

    June 2018 · Component 1

    5 marksPI4.1 Enthalpy changes for solids and solutionsPI4.2 Entropy and feasibility of reactions
    The whole paper ↗
    June 2018 Component 1, question 9(a)(iii): The standard enthalpy change of solution of CsCl is +18 kJ mol–1 and the enthalpy of hydration of a chloride ion is –364 kJ mol–1. I. Calculate the enthalpy cha

  6. Q11(f)

    June 2017 · Component 1

    3 marksPI4.1 Enthalpy changes for solids and solutions
    The whole paper ↗
    June 2017 Component 1, question 11(f): Use the values in the table below to calculate the standard enthalpy of formation of magnesium chloride, MgCl2. [3] Enthalpy change / kJ mol−1 Standard enthalpy
All 6 questions on Enthalpy changes for solids and solutions, as a list
  1. June 2024, Component 1, Q15(c)(i) (2 marks): Use the Born-Haber cycle to calculate the energy required to form a Ca2+(g) ion from a Ca(g) atom. [2] Ca2+(g) + 2CI(g) + 2e– – 698 kJ mol–1 Ca(g) + 2CI(g) 242
  2. Autumn 2021, Component 1, Q11(d)(i) (1 mark): Using the data, give a reason why the student states that CuCl2 is more stable than CuCl. [1]
  3. June 2018, Component 1, Q9(a)(i) (1 mark): State the value of the standard enthalpy change of lattice breaking of CsCl. [1] kJ mol–1
  4. June 2018, Component 1, Q9(a)(ii) (2 marks): Calculate the standard enthalpy of formation of CsCl, ΔfHθ. [2] ΔfHθ = kJ mol–1
  5. June 2018, Component 1, Q9(a)(iii) (5 marks): The standard enthalpy change of solution of CsCl is +18 kJ mol–1 and the enthalpy of hydration of a chloride ion is –364 kJ mol–1. I. Calculate the enthalpy cha
  6. June 2017, Component 1, Q11(f) (3 marks): Use the values in the table below to calculate the standard enthalpy of formation of magnesium chloride, MgCl2. [3] Enthalpy change / kJ mol−1 Standard enthalpy

Questions, mark schemes and examiner’s reports are © WJEC Eduqas, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Every Eduqas A-Level Chemistry paper.

Rather write your answers by hand on iPad? Plumi marks them against the same mark schemes.