Partial Pressure

Partial Pressure

The pressure exerted by a designated component or components of a gaseous mixture.

This may be separately measured in some cases by suitable selection of gases, traps, or analytical trains. When the percentage composition of the mixture is known, the partial pressure may be calculated from the total pressure by the Dalton's law of partial pressures.

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References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use