Calculate pressure/volume/temperature, compressibility factor, and fugacity coefficient for liquid/gas/fluid.

Warning: may return a value for a metastable state.

- Enter the critical temperature and pressure.
- Enter two of three quantities, leave blank the field which is to be calculated.
- Select units.
- Click Calculate to get the missing quantity, compressibility factor, and fugacity coefficient.
- Expressions (e.g., 200/132) are accepted in input fields.

**Results:**

gas: | n.a. | |

liquid: | n.a. |

**Notation:**

T = temperature

P = pressure

Vm = molar volume

Tc = critical temperature

Pc = critical pressure

reduced quantities: Tr=T/Tc, Pr=P/Pc, Vr=Vm/(R*Tc/Pc)

Z = Pr*Vr/Tr= P*Vm/(R*T) = compressibility factor

φ = fugacity coefficient

atm = 101325 Pa

Theory (in Czech) – Version 1 (with reduced quantites) – Critical data of selected gases

**Author:**

© Jiří Kolafa (2006, 2020) by the GNU General Public License 3