Water properties

Calculate specific volume, internal energy, enthalpy, and entropy from any two independent properties within the Koretsky steam-table ranges.

PPressureMPa

TTemperature°C

v̂Specific volumem³/kg

ûSpecific internal energykJ/kg

ĥSpecific enthalpykJ/kg

ŝSpecific entropykJ/(kg·K)

Temperature

Pressure

Define the state

Enter two properties

1 MPa: 179.90–1300 °C available

Property oneMPa

Property two°C

Calculated state

Superheated water vapour

Selected units

1.000MPa

300.00°C

v̂

0.25794m³/kg

2793.2kJ/kg

3051.2kJ/kg

7.1228kJ/(kg·K)

Method. Forward values use linear interpolation in temperature and pressure between the surrounding Koretsky entries. Other property pairs are solved numerically on the same continuous interpolated surface. Do not use this tool for saturated liquid-vapour mixtures.

Reference. Milo D. Koretsky, Engineering and Chemical Thermodynamics, Appendix B, Tables B.4 and B.5. The clear 7 MPa, 450 °C internal-energy printing error is corrected to 2977.9 kJ/kg using ĥ = û + Pv̂.

Water properties

Enter two properties

Superheated water vapour

Adding final touches

Water properties

Enter two properties

Superheated water vapour