Syllabus Edition
First teaching 2023
First exams 2025
Iron acts as a catalyst in the Haber process.
Complete the electron configuration for an atom of 
.
In the Haber process, iron is often powder-coated onto a honeycomb mesh to increase its surface area.
Explain whether iron is a homogeneous or heterogeneous catalyst.
Describe the mode of action of a heterogeneous catalyst in a chemical reaction.
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Define homogeneous catalysis.
Explain the mode of action for a homogeneous catalyst.
Discuss the advantages and limitations of using homogeneous catalysts in industrial processes.
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After fractional distillation, the larger hydrocarbon molecules are fed into a steel chamber and heated to high temperatures without oxygen. They are then passed over a catalyst and cracked into smaller, more useful hydrocarbons.
Name a catalyst used during cracking.
Use the information in part (a) to identify the type of catalyst used in cracking. Explain your answer.
Explain how the use of a powdered catalyst is more effective in cracking.
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