Question detail
What are the raw materials used 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
What are the raw materials used in the Haber process?
Answer
The raw materials used in the Haber process are nitrogen and hydrogen. Nitrogen is typically sourced from the air, while hydrogen can be obtained from methane or natural gas through steam reforming.
Explanation
A strong answer should directly address the approved learning objective to explain why unreacted nitrogen and hydrogen are recycled. (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
Recycling in the Haber Process
Students often think that unreacted nitrogen and hydrogen are recycled to increase the amount of ammonia produced in the next cycle.
Explain that unreacted nitrogen and hydrogen are recycled primarily to improve the efficiency of the process and reduce waste, not just to increase ammonia yield.
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