Boyle's law

For a fixed amount of gas at constant temperature, pressure and volume are inversely proportional, so the product PV stays the same. The equation compares an initial state with a final state.

P_1 V_1 = P_2 V_2

What the symbols mean

initial pressure of the gas (e.g. in Pa or atm)
initial volume of the gas (e.g. in m^3 or L)
final pressure of the gas, in the same unit as P_1
final volume of the gas, in the same unit as V_1

About this formula

  • FieldPhysics
  • TopicGas laws
  • LevelHigh school
  • Also calledBoyle-Mariotte law, Mariotte's law, pressure volume relation for gases, gas pressure and volume inverse proportion, Boyle's law formula, Boyle–Mariotte law
  • SourceWikidata Q175974

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