What does vapor pressure mean?
Definitions for vapor pressure
va·por pres·sure
This dictionary definitions page includes all the possible meanings, example usage and translations of the word vapor pressure.
Princeton's WordNet
vapor pressure, vapour pressurenoun
the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form)
Wiktionary
vapor pressurenoun
The pressure that a vapor exerts, or the partial pressure if it is mixed with other gases.
Wikipedia
Vapor pressure
Vapor pressure (or vapour pressure in English-speaking countries other than the US; see spelling differences) or equilibrium vapor pressure is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. The equilibrium vapor pressure is an indication of a liquid's thermodynamic tendency to evaporate. It relates to the balance of particles escaping from the liquid (or solid) in equilibrium with those in a coexisting vapor phase. A substance with a high vapor pressure at normal temperatures is often referred to as volatile. The pressure exhibited by vapor present above a liquid surface is known as vapor pressure. As the temperature of a liquid increases, the attractive interactions between liquid molecules become less significant in comparison to the entropy of those molecules in the gas phase, increasing the vapor pressure. Thus, liquids with strong intermolecular interactions are likely to have smaller vapor pressures, with the reverse true for weaker interactions. The vapor pressure of any substance increases non-linearly with temperature, often described by the Clausius–Clapeyron relation. The atmospheric pressure boiling point of a liquid (also known as the normal boiling point) is the temperature at which the vapor pressure equals the ambient atmospheric pressure. With any incremental increase in that temperature, the vapor pressure becomes sufficient to overcome atmospheric pressure and cause the liquid to form vapor bubbles. Bubble formation in high liquid depths requires a slightly higher temperature due to the higher fluid pressure, due to hydrostatic pressure of the fluid mass above. More important at shallow depths is the higher temperature required to start bubble formation. The surface tension of the bubble wall leads to an overpressure in the very small, initial bubbles. The vapor pressure that a single component in a mixture contributes to the total pressure in the system is called partial pressure. For example, air at sea level, and saturated with water vapor at 20 °C, has partial pressures of about 2.3 kPa of water, 78 kPa of nitrogen, 21 kPa of oxygen and 0.9 kPa of argon, totaling 102.2 kPa, making the basis for standard atmospheric pressure.
ChatGPT
vapor pressure
Vapor pressure is the pressure exerted by a vapor in equilibrium with its condensed phases (solid or liquid) at a particular temperature in a closed container. It is a measure of the tendency of particles to escape from the liquid or solid phase into the gaseous phase. The higher the vapor pressure of a substance at a given temperature, the higher the volatility and the lower the normal boiling point of that substance.
Wikidata
Vapor pressure
Vapor pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. The equilibrium vapor pressure is an indication of a liquid's evaporation rate. It relates to the tendency of particles to escape from the liquid. A substance with a high vapor pressure at normal temperatures is often referred to as volatile. The vapor pressure of any substance increases non-linearly with temperature according to the Clausius–Clapeyron relation. The atmospheric pressure boiling point of a liquid is the temperature at which the vapor pressure equals the ambient atmospheric pressure. With any incremental increase in that temperature, the vapor pressure becomes sufficient to overcome atmospheric pressure and lift the liquid to form vapor bubbles inside the bulk of the substance. Bubble formation deeper in the liquid requires a higher pressure, and therefore higher temperature, because the fluid pressure increases above the atmospheric pressure as the depth increases. The vapor pressure that a single component in a mixture contributes to the total pressure in the system is called partial pressure. For example, air at sea level, and saturated with water vapor at 20 °C, has partial pressures of about 23 mbar of water, 780 mbar of nitrogen, 210 mbar of oxygen and 9 mbar of argon.
U.S. National Library of Medicine
Vapor Pressure
The contribution to barometric PRESSURE of gaseous substance in equilibrium with its solid or liquid phase.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of vapor pressure in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of vapor pressure in Pythagorean Numerology is: 4
Examples of vapor pressure in a Sentence
The interesting piece here is that the effect of daily summer temperatures on fire appears to be non-linear, meaning that each additional degree of warming has a greater influence than the last, this is in line with other work suggesting that wildfire size and severity is increasing in a non-linear fashion in response to the increasing' vapor pressure deficit' — a measure of atmospheric' thirstiness' that is directly related to both humidity and temperature.
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"vapor pressure." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/vapor+pressure>.
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