Boyle's Law — FRCA Primary MCQ

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EasyPhysics & Clinical MeasurementBoyle's LawFRCA Primary

Which gas law describes the relationship between pressure and volume at constant temperature?

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Correct answer: E — Boyle's law

Boyle's law: P1V1 = P2V2 at constant temperature. Pressure is inversely proportional to volume. This is why gas remaining in an oxygen cylinder is directly proportional to gauge pressure (oxygen exists as a compressed gas above its critical temperature).

Reference: Al-Shaikh Stacey 2019 Essentials of Anaesthetic Equipment