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ZIMSEC A-Level Chemistry

6.4.5.2Chemical properties of sulphur; Haber process; Contact process

Chemical properties of sulphur; Haber process; Contact process in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 6.4.5.2.1Explain the manufacture of ammonia by the Haber process in terms of the principles of kinetics and equilibria.
  2. 6.4.5.2.2Explain the manufacture of sulfuric acid by the Contact process in terms of the principles of kinetics and equilibria.
  3. 6.4.5.2.3Recognise the industrial importance of sulfuric acid and ammonia.

Lessons

  • The Haber and Contact processes

    45 min

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Sample question

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Chemical properties of sulphur; Haber process; Contact process: sample question

1 mark

Why is the Contact process step 2 SOX2(g)+OX2(g)⇌2 SOX3(g)\ce{2SO2(g) + O2(g) <=> 2SO3(g)} carried out at only about 1–2 atm?

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