Question detail
Why does cooling allow ammonia to liquefy and be removed from the reaction mixture in the Haber process?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The Haber process and the use of NPK fertilisers
Question
- A. It increases the pressure in the reaction mixture.
- B. It reduces the temperature, allowing ammonia to condense.
- C. It speeds up the reaction rate of ammonia formation.
- D. It decreases the concentration of nitrogen and hydrogen.
Answer
The correct option is It reduces the temperature, allowing ammonia to condense.. This answer is correct because it matches the approved learning objective to explain why cooling allows ammonia to liquefy and be removed from the reaction mixture. (Chemistry only) in the subtopic The Haber process.
Explanation
The correct option is It reduces the temperature, allowing ammonia to condense.. It reduces the temperature, allowing ammonia to condense. is correct because it directly supports the approved learning objective to explain why cooling allows ammonia to liquefy and be removed from the reaction mixture. (Chemistry only). This belongs to the subtopic The Haber process within The Haber process and the use of NPK fertilisers, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from The Haber process.
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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