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CAIE IGCSE Chemistry 6.3.5 Symbol equation for the production of

CAIE IGCSE Chemistry 6.3.5 Symbol equation for the production of
Cambridge IGCSE Chemistry 0620 syllabus for exams in 2026, 2027 and 20282026–2028

Practise recognising the Haber process and writing the reversible symbol equation for making ammonia from nitrogen and hydrogen.

How this is tested

  • write N2 + 3H2 ⇌ 2NH3 with the correct formulae, balancing and reversible arrow
  • link ammonia production from nitrogen and hydrogen to the named Haber process

Question 3(a)

[Maximum number: 1]

The symbol equation for the industrial production of ammonia is shown.

N2( g)+3H2( g)⇌2NH3( g)ΔH=−90 kJ/mol\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g}) \quad \Delta H=-90 \mathrm{~kJ} / \mathrm{mol}

Name this industrial process.