Vapor pressure

• vapor pressure (לחץ אדים)

  • “the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system” (Wikipedia)
  • higher temperature → higher vapor pressure
  • also called: saturation vapor pressure or equilibrium vapor pressure
  • cf. vapor pressure in meteorology

• https://chemistry.stackexchange.com/questions/34710/relationship-between-vapour-pressure-and-saturated-vapour-pressure

• supersaturation (רוויית יתר)

  • “the condition of a vapour having a higher saturation vapour pressure than is normally possible” (Wiktionary)
  • supersaturated vapor (אד רווי-יתר)

Definition in meteorology

• vapor pressure (לחץ אדים)

  • $e=P_{\mathrm{H}{}_2\mathrm{O}}$
  • the partial pressure of gas (usually water vapor) in the atmosphere

• https://en.wikipedia.org/wiki/Vapor_pressure#Meaning_in_meteorology

• https://glossary.ametsoc.org/wiki/equilibrium-vapor-pressure/

• https://glossary.ametsoc.org/wiki/saturation-vapor-pressure/

humidity

• dew point
• absolute humidity
• relative humidity $=\frac{\text{partial pressure of water vapor}}{\text{saturated vapor pressure of water}}$