Question detail
What is the role of cooling in the Haber process regarding the removal of ammonia from the reaction mixture?
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 is the role of cooling in the Haber process regarding the removal of ammonia from the reaction mixture?
Answer
Cooling allows ammonia gas to condense into a liquid, which can then be removed from the reaction mixture. This process enhances the overall yield of ammonia by separating it from unreacted nitrogen and hydrogen gases.
Explanation
A strong answer should directly address the approved learning objective to explain why cooling allows ammonia to liquefy and be removed from the reaction mixture. (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
Cooling and Ammonia Liquefaction
Students often think that cooling ammonia directly causes it to form from the gases.
Emphasize that cooling allows the already formed ammonia gas to liquefy and be separated from unreacted gases.
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