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Thermodynamics (A-level only)

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Question 2

The theoretical lattice enthalpy of an ionic compound can be calculated using a perfect ionic model.

Which compound shows the greatest percentage difference between its experimental lattice enthalpy (determined using a Born–Haber cycle) and its theoretical lattice enthalpy?

A

BaF2\text{BaF}_2BaF2​

B

BaI2\text{BaI}_2BaI2​

C

MgF2\text{MgF}_2MgF2​

D

MgI2\text{MgI}_2MgI2​

Markscheme

Thermodynamics (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Thermodynamics (A-level only)

27 exam-style questions on AQA A Level Chemistry Thermodynamics (A-level only), covering Born–Haber cycles (A-level only) and Gibbs free-energy change, $\Delta G$ , and entropy change, $\Delta S$ (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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