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

Then, use this k value to compute the oxygen solubility at the specified oxygen partial pressure, 0.17 atm.

From Textbooks • Feb. 14, 2019

Thus water evaporates and ice sublimates when their vapor pressures exceed the partial pressure of water vapor in the surrounding mixture of gases.

From Textbooks • Aug. 12, 2015

At 100ºC , water vapor enters the bubble continuously since the partial pressure of water is equal to 1.00 atm in equilibrium.

From Textbooks • Aug. 12, 2015

The assimilation of carbon increases with the increase in the partial pressure of the CO2.

From More Letters of Charles Darwin — Volume 2 by Darwin, Francis, Sir