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.

---

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

---

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

Determine the partial pressure of cyclobutene and its concentration after 30.0 minutes if an isomerization reaction is carried out at 150 °C with an initial pressure of 55 torr.

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

The second characteristic is most important, and depends on the phenomena of "partial pressure," which have been referred to in Chapter VI.

From Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power by Leeds, F. H. (Frank Henley)