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AQA GCSE · Question 10.1 · Using resources
This question is about gases. Figure 10 shows how nitrogen is used in the Haber Process to produce ammonia. Gas X in Figure 10 is obtained from methane. Name gas X.
This question is about gases. Figure 10 shows how nitrogen is used in the Haber Process to produce ammonia. Gas X in Figure 10 is obtained from methane. Name gas X.
How to approach this question
1. Recall the reactants for the Haber process, which produces ammonia (NH₃).
2. The formula for ammonia shows it contains nitrogen (N) and hydrogen (H).
3. The diagram shows nitrogen is one reactant. Therefore, Gas X must be the other reactant.
4. The question also gives a clue that Gas X is obtained from methane (CH₄). Natural gas (methane) is reacted with steam to produce this gas.
Full Answer
Hydrogen
The Haber process is the industrial method for producing ammonia (NH₃). The chemical equation for the reaction is:
N₂(g) + 3H₂(g) ⇌ 2NH₃(g)
The reactants are nitrogen and hydrogen. The diagram shows nitrogen entering the reactor, so Gas X must be hydrogen.
Hydrogen for the Haber process is typically produced by reacting methane (from natural gas) with steam. This process is called steam reforming.
Common mistakes
✗ Naming any other gas like oxygen or methane.
✗ Naming the product, ammonia.
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