Question detail
Describe the role of the iron catalyst in the Haber process.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
The Haber process and the use of NPK fertilisers
Question
Describe the role of the iron catalyst in the Haber process.
Answer
The iron catalyst in the Haber process speeds up the reaction between nitrogen and hydrogen, allowing ammonia to be produced more efficiently without being consumed in the reaction.
Explanation
A strong answer should directly address the approved learning objective to describe purified nitrogen and hydrogen passing over an iron catalyst. (Chemistry only). This question belongs to The Haber process within The Haber process and the use of NPK fertilisers, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to chemistry only, and keeps the wording specific to AQA GCSE revision.
Common mistake
Common Misunderstanding of the Haber Process
Students often confuse the role of the iron catalyst with the reactants in the Haber process, thinking that the catalyst is a reactant.
Remember that the iron catalyst is not consumed in the reaction; it only speeds up the process of ammonia formation without being part of the chemical equation.
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