Quelpr
2 marksRates of Reaction

CSEC Chemistry · May/June 2009 · Paper 2 · Question 5(a)(ii)

Ammonia is produced industrially by the Haber Process: N₂(g) + 3H₂(g) ⇌ 2NH₃(g); ΔH = -92 kJmol⁻¹. Figure 4 shows the steps in the Haber Process.

The temperatures currently used in the manufacture of ammonia make the process cost-effective. Suggest ONE reason for this.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 5(a)(i)Name the catalyst and state the temperature used in the manufacture of ammonia.[2 marks]
  2. 5(a)(iii)Suggest ONE reason for the importance of Step D in Figure 4.[1 mark]
  3. 5(b)(i)Write a balanced equation to show the laboratory preparation of ammonia.[2 marks]
  4. 5(b)(ii)Describe a suitable test for identifying ammonia.[2 marks]
  5. 5(c)(i)Write balanced equations for Steps 2 and 3 to show the production of nitric acid from ammonia.[4 marks]
  6. 5(c)(ii)State TWO OTHER uses of ammonia.[2 marks]

More practice: the rest of this paper · more Rates of Reaction questions · all CSEC Chemistry past papers