O Level Biology 6 Views 1 Answers
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Sourav PanNovember 3, 2024

State the percentages of the gases in atmospheric air

State the percentages of the gases in atmospheric air

Sourav Pan
Sourav PanNovember 3, 2024

Answered step-by-step

The composition of atmospheric air is primarily made up of the following gases, measured by their mole fractions:

  • Nitrogen (N₂): Approximately 78.08%
  • Oxygen (O₂): Approximately 20.95%
  • Argon (Ar): Approximately 0.93%
  • Carbon Dioxide (CO₂): Approximately 0.04%

Additionally, air contains variable amounts of water vapor, which can range from about 0% to 3% depending on humidity levels, as well as trace amounts of other gases such as neon, helium, methane, and krypton

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