Water vapor (H₂O) ideal-gas table, per mole

This table gives h̄, ū and s̄° of water vapor (H₂O) as an ideal gas, per kmol, as a function of temperature and measured from 298.15 K and 1 atm (differences between two temperatures are those of any table). Above you can use it interactively (switch units with SI/US, pick the pressure or go to the calculator for any point with step-by-step interpolation). Reference state: values relative to the standard state: h̄ − h̄°, ū − ū° and s̄° − s̄°, all zero at 298.15 K and 1 atm.

Sources

Values computed by Simuveliq with CoolProp 8.0.0 (downloaded from PyPI, code on GitHub), free software under the MIT license. The temperatures and pressures of the table were chosen by Simuveliq; no table was copied from a book.

• Equation of state: W. Wagner, A. Pruß (2002). The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use. J. Phys. Chem. Ref. Data 31, 387–535. doi:10.1063/1.1461829
• CoolProp: Bell, Ian H., Wronski, Jorrit, Quoilin, Sylvain, Lemort, Vincent (2014). Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp. Ind. Eng. Chem. Res. 53, 2498–2508. doi:10.1021/ie4033999

Full sources and licenses

Tables

• Water: saturation (T) · saturation (P) · superheated vapor · compressed liquid
• R-134a: saturation (T) · saturation (P) · superheated vapor
• R-22: saturation (T) · saturation (P) · superheated vapor
• R-32: saturation (T) · saturation (P) · superheated vapor
• R-404A: saturation (T) · saturation (P) · superheated vapor
• R-410A: saturation (T) · saturation (P) · superheated vapor
• R-1234yf: saturation (T) · saturation (P) · superheated vapor
• Ammonia (R-717): saturation (T) · saturation (P) · superheated vapor
• Carbon dioxide (R-744): saturation (T) · saturation (P) · superheated vapor
• Propane (R-290): saturation (T) · saturation (P) · superheated vapor
• Isobutane (R-600a): saturation (T) · saturation (P) · superheated vapor
• Nitrogen: saturation (T) · saturation (P) · superheated vapor
• Oxygen: saturation (T) · saturation (P) · superheated vapor
• Hydrogen: saturation (T) · saturation (P) · superheated vapor
• Helium: saturation (T) · saturation (P) · superheated vapor
• Argon: saturation (T) · saturation (P) · superheated vapor
• Methane: saturation (T) · saturation (P) · superheated vapor
• Air: ideal gas
• Nitrogen (N₂) per mole: ideal gas
• Oxygen (O₂) per mole: ideal gas
• Carbon dioxide (CO₂) per mole: ideal gas
• Carbon monoxide (CO) per mole: ideal gas
• Hydrogen (H₂) per mole: ideal gas
• Water vapor (H₂O) per mole: ideal gas
• critical constants and molar mass
• Sources and licenses

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