Question detail
Explain why unreacted nitrogen and hydrogen are recycled 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
Explain why unreacted nitrogen and hydrogen are recycled in the Haber process.
Answer
Unreacted nitrogen and hydrogen are recycled in the Haber process to improve efficiency and reduce waste. By reintroducing these gases into the reaction, the overall yield of ammonia can be maximized, making the process more economically viable.
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.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.