top of page
new sciteach chem small.png

Lattice Enthalpies

2018 Paper One

Question One
This question is worth 6 Marks. It tests your understanding about enthalpy changes. Students lost marks if they omitted the state symbols/electrons from equations.

Many students forgot to divide the bond dissociation energy for oxygen by two and some calculated enthalpy of lattice dissociation rather than formation.

Make sure you include the state symbols

bottom of page