partial pressure

American  

noun

Physics, Chemistry.

1. the pressure that a gas in a mixture of gases would exert if it occupied the same volume as the mixture at the same temperature.

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partial pressure British  

noun

1. the pressure that a gas, in a mixture of gases, would exert if it alone occupied the whole volume occupied by the mixture

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Etymology

Origin of partial pressure

First recorded in 1855–60

Example Sentences

Once the MOF is filled with CO2, the CO2 can be removed, or desorbed, by lowering the partial pressure of CO2, either by flushing with a different gas or putting it in a vacuum.

From Science Daily • Nov. 14, 2024

The concentration of a gaseous solute in a solution is proportional to the partial pressure of the gas to which the solution is exposed, a relation known as Henry’s law.

From Textbooks • Feb. 14, 2019

By calculating ∆G, determine if the evaporation of water at 298 K is spontaneous when the partial pressure of water, is 0.011 atm.

From Textbooks • Feb. 14, 2019

Relative humidity is related to the partial pressure of water vapor in the air.

From Textbooks • Aug. 12, 2015

The ratios of the fluxes of partial pressure to the corresponding pressure-gradients are also equal to the same coefficient.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" by Various