# Combined Gas Law

Combined gas law is the relationship between pressure volume and temperature for a system with a constant amount of gas. This law comes from the combination of three different laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law.

## Combined Gas Law formula |
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\(\large{ \frac{ p_1\;V_1 }{ T_1 } = \frac{ p_2\;V_2 }{ T_2 } }\) | ||

Symbol |
English |
Metric |

\(\large{ p_1 }\) = pressure of the gas under conditions | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |

\(\large{ T_1 }\) = temperature of the gas under conditions | \(\large{F}\) | \(\large{C}\) |

\(\large{ V_1 }\) = volume of the gas under conditions | \(\large{in^3}\) | \(\large{mm^3}\) |

\(\large{ p_2 }\) = pressure of the gas under conditions | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |

\(\large{ T_2 }\) = temperature of the gas under conditions | \(\large{F}\) | \(\large{C}\) |

\(\large{ V_2 }\) = volume of the gas under conditions | \(\large{in^3}\) | \(\large{mm^3}\) |

Tags: Temperature Equations Pressure Equations Gas Equations Ideal Gas Equations Gas Laws Equations Laws of Physics