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Once two of the three reduced properties are found, the compressibility chart can be used. In a compressibility chart, reduced pressure is on the x-axis and Z is on the y-axis. When given the reduced pressure and temperature, find the given pressure on the x-axis. From there, move up on the chart until the given reduced temperature is found.
Download as PDF; Printable version; In other projects ... the compressibility ... a generalized compressibility chart or an alternative equation of state better ...
Includes a chart of compressibility factors versus reduced pressure and reduced temperature (on last page of the PDF document) Theorem of corresponding states on SklogWiki . This thermodynamics -related article is a stub .
Figure 7: Generalized compressibility chart for a van der Waals gas. Real gases are characterized by their difference from ideal by writing p v = Z R T {\displaystyle pv=ZRT} . Here Z {\displaystyle Z} , called the compressibility factor, is expressed either as Z ( p , T ) {\displaystyle Z(p,T)} or Z ( ρ , T ) {\displaystyle Z(\rho ,T)} .
These dimensionless thermodynamic coordinates, taken together with a substance's compressibility factor, provide the basis for the simplest form of the theorem of corresponding states. [1] Reduced properties are also used to define the Peng–Robinson equation of state, a model designed to provide reasonable accuracy near the critical point. [2]
Download as PDF; Printable version; ... and one must use the full generalized Hooke's law. ... The inverse of the bulk modulus gives a substance's compressibility.
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Dimensionless numbers (or characteristic numbers) have an important role in analyzing the behavior of fluids and their flow as well as in other transport phenomena. [1] They include the Reynolds and the Mach numbers, which describe as ratios the relative magnitude of fluid and physical system characteristics, such as density, viscosity, speed of sound, and flow speed.