Henry's Law Definition — FRCA Primary MCQ

Instant feedback + full explanation. One question, done properly.

EasyPhysics & Clinical MeasurementHenry's Law DefinitionFRCA Primary

Henry's law states that:

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: A — Amount of gas dissolved in liquid is proportional to its partial pressure at constant temperature

Henry's law: concentration of dissolved gas is proportional to the partial pressure above the liquid at constant temperature. This explains oxygen and CO2 transport in blood / nitrogen narcosis in diving / and anaesthetic gas uptake.

Reference: Al-Shaikh Stacey 2019 Essentials of Anaesthetic Equipment