Air Quality: Gases in clean air.

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  • Air quality: Gases in clean air.
    • Nitrogen: N2- 78%- Only reacts when hot.
    • Oxygen: O2- 21%- needed for respiration and breathing.
    • Argon: Ar: 1%- Not reactive.
    • Carbon Dioxide: CO2- 0.04%- Needed for photo synthesis.
    • Water vapour: H2O- vaires 0-4%- varies with the weather
    • Nitrogen and oxygen dont react in the air however inside a car engine it is very hot which makes them react together to make nitrogen monoxide.
      • The nitrogen monoxide reacts with more oxygen in the air to make nitrogen dioxide.


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