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physical property > pressure > partial pressure

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partial pressure  

Definition

  • In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas if it alone occupied the entire volume of the original mixture at the same temperature. The total pressure of an ideal gas mixture is the sum of the partial pressures of the gases in the mixture (Dalton's Law). The partial pressure of a gas is a measure of thermodynamic activity of the gas's molecules. (Adapted from: https://en.wikipedia.org/wiki/Partial_pressure)

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http://data.loterre.fr/ark:/67375/QX8-HXZN6Q58-3

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