Chemistry › Section I · Gases › Topic I.1
Gas pressure
A gas pushes on every surface it touches, from the inside of a tyre to your eardrums on a plane. Pressure measures that push, and getting its units right is the first step in every gas calculation that follows.
In this topic
- Why a gas pushes
- Worked example: snowshoes and boots
- Atmospheric pressure
- Units of pressure
- Worked example: a mountain city's barometer
- The barometer
- Worked example: a water barometer
- Manometers
- Worked example: an open-end manometer
- Gauge pressure and blood pressure
- Common mistakes to avoid
- Key takeaways
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