Sample data from Engineering Database — 375 reference tables, deterministic calculators, and Engineering AI. Sign up free
Compressibility Factors: z factor
Tr3.00 Pr1.500 to Tr3.00 Pr7.000
Generalized compressibility factor Z = Z0 + omega*Z1 (Lee-Kesler correlation) as a function of reduced temperature (Tr) and reduced pressure (Pr), plus critical properties (Tc, Pc, acentric factor omega) for ~41 common engineering gases and fluids
| record type | sort key | Pr (dimensionless) | Tr (dimensionless) | Z0 (dimensionless) | Z1 (dimensionless) |
|---|---|---|---|---|---|
| z factor | Tr3.00 Pr1.500 | 1.5 | 3 | 0.884 | 0.3481 |
| z factor | Tr3.00 Pr10.000 | 10 | 3 | 2.7938 | 0.2008 |
| z factor | Tr3.00 Pr2.000 | 2 | 3 | 1.1655 | 0.3558 |
| z factor | Tr3.00 Pr3.000 | 3 | 3 | 1.5918 | 0.3024 |
| z factor | Tr3.00 Pr5.000 | 5 | 3 | 1.9934 | 0.1895 |
| z factor | Tr3.00 Pr7.000 | 7 | 3 | 2.3499 | 0.1186 |
What else is in Engineering Database
Iron Engine ↗Engineering AI at ironengine.ai
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators