IB skill practice

Compare lattice enthalpy and ionic radii

Paper 1, Paper 2 5 marks Difficulty 5

Rank lattice enthalpy factors

A Auckland HL chemistry tutorial asks which factor most directly increases lattice enthalpy magnitude when ionic charges remain fixed. Choose the structural factor. Use the labelled diagram or spectrum before giving the answer. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.