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 maximize the yield of ammonia. Recycling these gases reduces waste and ensures that the raw materials are used effectively, minimizing costs.
Explanation
A strong answer should directly address the approved learning objective to interpret graphs of reaction conditions versus rate. (HT only; Chemistry only; MS 1a, 1c). 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
Misinterpreting Graphs
Students often confuse the axes on graphs of reaction conditions versus rate, leading to incorrect interpretations of how changes in conditions affect the rate of reaction.
Carefully label and review the axes of the graph, ensuring you understand which variable is being plotted against which. Remember that the x-axis typically represents the reaction conditions, while the y-axis represents the rate.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.