Wellcome to the Calculator for

Thermodynamic Properties of Fluid Mixtures


A short description of the equation of state being used is available here.

This page is in debugging stage now. Please inform us about any errors detected. If some obviously incorrect results were returned, please inform us about the input data you used.


Properties to be calculated:

  • Fluid Density
  • Fugacities
  • Activities

  • Please follow the steps below to select the data required:

    Keep in mind that the decimal point is a point but not a comma. If you type "125,72" the program will interpret it as "125". A correct input is "125.72".

    1. Please specify Temperature and Pressure

    The current version is limited to the temperature range [750-10000]K and pressure range [50-100000]MPa

    Temperature Kelvin Celsius
    Pressure MPa KBars Bars

    2. Please specify the fluid composition.

    The mole fraction can be any positive number. The fluid composition will be normalized to unity during the calculations anyway.

    Mole fraction Name
    H2O
    CO2
    CH4
    N2
    O2
    H2
    H2S
    SO2
    HCl
    CO
    Ar
    NH3