# 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, Charle's Law, and Gay-Lussac's Law.

### Combined Gas Law Formula

\(\large{ \frac{ p_1\;V_1 }{ T_1 } = \frac{ p_2\;V_2 }{ T_2 } }\)

Where:

\(\large{ p_1 }\) = pressure of the gas under conditions

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

\(\large{ V_1 }\) = volume of the gas under conditions

\(\large{ p_2 }\) = pressure of the gas under conditions

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

\(\large{ V_2 }\) = volume of the gas under conditions

Tags: Equations for Temperature Equations for Pressure Equations for Gas Equations for Ideal Gas