A-Level Edexcel Chemistry Born-Haber Cycles
Review A-Level Edexcel Chemistry Born-Haber cycles through cycle completion, species labels, enthalpy calculations and sign checks.
- Syllabus
- First assessment 2019
- Course
- Chemistry YCH11
- Level
- A2
Review A-Level Edexcel Chemistry Born-Haber cycles through cycle completion, species labels, enthalpy calculations and sign checks.
This question is about oxides of iron.
Iron also forms iron(II) oxide. The data in the table can be used to construct a Born-Haber cycle for iron(II) oxide, FeO.

Complete the Born-Haber cycle by putting letters in the boxes to label the energy changes.


All 7 correct 3 marks
4-6 correct 2 marks
2-3 correct 1 mark
Allow values instead of letters
Calculate the value for second ionisation energy of iron, C.
correct expression
- correct calculation
Example of calculation
-759-416-272+3920-798+141-249=(+)1567( kJ mol−1)
Allow 3SF
Correct answer with or without working scores 2
marks
Allow 1 mark for one mistake