Combined Gas Law Calculator |
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Click save settings to reload page with unique web page address for bookmarking and sharing the current tool settings ✕ clear settings Change the answer mode for this tool by selecting P1 gas pressure, V1 gas volume, T1 gas temperature, P2 gas pressure, V2 gas volume or T2 gas temperature as the parameter to calculate instead Related Tools Ideal gas law calculator Boyle’s law calculator Charles’ law calculator Avogadro’s law calculator Gay-Lussac’s law calculator Pressure units conversion Volume units conversion Temperature units conversion Contents Toggle User GuideThis tool will calculate any parameter from the equation for the combined gas law P₁V₁/T₁=P₂V₂/T₂ which is derived by combining Boyle’s, Charles’ and Gay-Lussac’s law, and includes P1 gas pressure, V1 gas volume, T1 gas temperature, P2 gas pressure, V2 gas volume and T2 gas temperature. The combined gas law explains that for an ideal gas, the absolute pressure multiplied by the volume of the gas is directly proportional to the gas temperature, if the amount of gas remains constant. FormulasThe combined gas law is explained with math in the following ways. The pressure multiplied by the volume of an ideal gas is proportional to its temperature: P · V ∝ T The pressure multiplied with the volume, and divided by the temperature of an ideal gas in a given state, equals a constant value: P · V / T = Constant The multiplying together of the pressure and volume, and dividing by the temperature of an ideal gas in one state, equals the multiplying of the pressure and volume, and dividing by the temperature an ideal gas in another state, as long as the quantity of gas does not change between the two states. P1 · V1 / T1 = P2 · V2 / T2 The formulas used by this combine gas law calculator to determine each individual parameter are: P1 = P2 · V2 · T1 / (V1 · T2) V1 = P2 · V2 · T1 / (P1 · T2) T1 = P1 · V1 · T2 / (P2 · V2) P2 = P1 · V1 · T2 / (V2 · T1) V2 = P1 · V1 · T2 / (P2 · T1) T2 = P2 · V2 · T1 / (P1 · V1) Symbols P1 = Pressure of the first gas state V1 = Volume of the first gas state T1 = Temperature of the first gas state P2 = Pressure of the second gas state V2 = Volume of the second gas state T2 = Temperature of the second gas state P1This is the absolute pressure of the first gas state. V1This is the total volume occupied by the first gas state. T1This is the temperature of the first gas state. P2This is the absolute pressure of the second gas state. V2This is the total volume occupied by the second gas state. T2This is the temperature of the second gas state. |
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