Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Use the enthalpy change of solution of a simple ionic solid and relevant enthalpy change terms to construct Born–Haber cycles. Carry out related calculations.

Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Ionic lattice dissolves in polar solvents – each ion is surrounded by water molecules to become ‘hydrated’

Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Born–Haber cycle for calculating the enthalpy change of solution of KCl(s)

Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Explain, in qualitative terms, the effect of ionic charge and ionic radius on lattice enthalpy and enthalpy change of hydration.

Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Trend in lattice enthalpies of the sodium halides

Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Lattice enthalpy becomes more exothermic as the ionic charge increases