# Boyle's Law

Boyle's Law, one of the gas laws, is one derivation of the Ideal Gas Law. An alternate derivation is Charles' law. Boyle's law states that the volume occupied by a given mass of gas varies inversely with the absolute pressure if the temperature remains constant. For a fixed amount of gas kept at a fixed temperature, \(p\) and \(V\) are inversely proportional (while one increases, the other decreases). Boyle's law assumes that there is no temperature change in the process.

## Boyle's Law formula |
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\(\large{ p_1 \; V_1 = p_2 \; V_2 }\) | ||

Symbol |
English |
Metric |

\(\large{ p_1 }\) = pressure at state | \(\large{\frac{lbf}{in^2}}\) | \(\large{\frac{N}{m^2}}\) |

\(\large{ p_2 }\) = pressure at state | \(\large{\frac{lbf}{in^2}}\) | \(\large{\frac{N}{m^2}}\) |

\(\large{ V_1 }\) = volume at state | \(\large{ ft^3 }\) | \(\large{ m^3 }\) |

\(\large{ V_2 }\) = volume at state | \(\large{ ft^3 }\) | \(\large{ m^3 }\) |