vapor pressure


Definition of vapor pressure

: the pressure exerted by a vapor that is in equilibrium with its solid or liquid form

called also vapor tension

Examples of vapor pressure in a Sentence

Recent Examples on the Web Winter blend gasoline has a higher Reid vapor pressure (RVP) to make the engine start easier. Motormouth Bob Weber, Star Tribune, 30 Apr. 2021 If a liquid has a vapor pressure greater than atmospheric pressure, that liquid boils. Robert Rapier, Forbes, 10 Apr. 2021 Still, Poland said, doctors can't fully explain the case decline because potential factors range from travel and human behavior to viral changes and vapor pressure. Christopher Snowbeck, Star Tribune, 27 Feb. 2021 One of these indexes is known as the vapor pressure deficit, which is a proxy for how quickly vegetation dries out, and the other being the Evaporative Demand Drought Index, or EDDI, which measures the thirst of the atmosphere. Washington Post, 28 Aug. 2020 These pollutants can get into soil and water supplies, and TNT, due to its high vapor pressure, has a tendency to produce air pollutants that can harm workers melting down the material with steam. Jay Bennett, Popular Mechanics, 2 July 2018 The vapor pressure varies by month, region, and octane. Clifford Atiyeh, Car and Driver, 13 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vapor pressure.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vapor pressure

1865, in the meaning defined above

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Time Traveler for vapor pressure

Time Traveler

The first known use of vapor pressure was in 1865

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Statistics for vapor pressure

Last Updated

3 May 2021

Cite this Entry

“Vapor pressure.” Dictionary, Merriam-Webster, Accessed 24 Jun. 2021.

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