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Online calculator, figures and tables with water saturation (vapor) pressure at temperatures ranging 0 to 370 °C (32 to 700°F) - in Imperial and SI Units. Water tends to evaporate or vaporize by projecting molecules into the space above its surface.
- Evaporation From a Water Surface
Example - Evaporated Water from a Swimming Pool. There is a...
- Moist Air
Note! - the equations below is for pure water vapor - not...
- Scfm Versus Acfm and Icfm
Online calculator, figures and tables giving the boiling...
- Evaporative Cooling
The Direct Evaporative Cooling Process in a Mollier Diagram....
- Relative Humidity
The atmospheric pressure of air is 1013 mbar (101.325 kPa,...
- Humidity Ratio
The maximum amount of water vapor in the air is achieved...
- Liquids
lower vapor pressure are called heavy components ;...
- Removing Heat with Air
Moist Air - Vapor Pressure Vapor pressures vs. dry and wet...
- Evaporation From a Water Surface
31 lip 2024 · With this vapor pressure of water calculator, you can find the vapor pressure at a particular temperature according to five different formulas. This calculator works for the standard 0-100 °C range as well as temperatures above 100 °C and below the freezing point.
Tables B-1 and B-2 present data for saturated liquid and saturated vapor. Table B-1 is presented information at regular intervals of temperature while Table B-2 is presented at regular intervals of pressure. Table B-3 presents data for superheated vapor over a matrix of temperatures and pressures.
Table A–1 Molar mass, gas constant, and critical-point properties Table A–2 Ideal-gas specific heats of various common gases Table A–3 Properties of common liquids, solids, and foods Table A–4 Saturated water—Temperature table Table A–5 Saturated water—Pressure table Table A–6 Superheated water Table A–7 Compressed liquid water Table A–8 Saturated ice–water vapor
The vapor pressure of water is the pressure exerted by molecules of water vapor in gaseous form (whether pure or in a mixture with other gases such as air). The saturation vapor pressure is the pressure at which water vapor is in thermodynamic equilibrium with its condensed state.
Below are some selected values of temperature and the saturated vapor pressures required to place the boiling point at those temperatures. The pressures are stated in mega-Pascals, where a Pascal is a Newton per square meter, and as a multiple of standard atmospheric pressure.
Explore a comprehensive table of water vapor pressure at different temperature values presented in both SI (kPa) and US customary (psi) units.
