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Layers and gaseous components of the atmosphere — N₂, O₂, Ar, CO₂ and trace gases.
CO₂, CH₄ and H₂O vapour trap infrared radiation — mechanism of global warming.
Sources, effects and control of industrial and domestic air and water pollutants.
Water hardness, contamination, and the chemical processes used to purify water.
Industrial synthesis of ammonia from N₂ and H₂ — the temperature/pressure trade-off.
Industrial manufacture of sulfuric acid from SO₂ — V₂O₅ catalyst and three stages.
Electrochemical oxidation of metals in moist environments — iron rusting mechanism.