Synonyms: Compressibility Z-factor = Z-factor
Dimensionless multiplier in real gas equation of state which describes the deviation of a real gas from ideal gas behavior:
(1) | Z = \frac{p V}{\nu \, R \, T} = \frac{p}{\rho} \cdot \frac{M}{R \, T} |
where
p | fluid pressure | \nu | Amount of substance |
T | fluid temperature | V | fluid volume |
\rho | fluid density | M | molar mass |
R | gas constant |
It is related to fluid compressibility c as:
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The Z-factor value is trending towards
Z \rightarrow 1 for incompressible fluids and
Z \rightarrow a \cdot p for strongly compressible Fluids.
See also
Natural Science / Physics / Thermodynamics / Equation of State
[ Fluid Compressibility ][ Gas compressibility ]