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 pressure exerted by each individual gas in a mixture is called its partial pressure.

From Textbooks • Feb. 14, 2019

At 1274 K, a sample exhibits a partial pressure of I2 of 0.1122 atm and a partial pressure due to I atoms of 0.1378 atm.

From Textbooks • Feb. 14, 2019

Then equilibrium has been achieved, and the vapor pressure is equal to the partial pressure of water in the container.

From Textbooks • Aug. 12, 2015

Again ρ1u1 is the mass of gas flowing across any section per unit time, and k1ρ1u1 or p1u1 can be regarded as representing the flux of partial pressure produced by the motion of the gas.

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