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  2. Compressibility factor - Wikipedia

    en.wikipedia.org/wiki/Compressibility_factor

    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.

  3. Theorem of corresponding states - Wikipedia

    en.wikipedia.org/wiki/Theorem_of_corresponding...

    According to van der Waals, the theorem of corresponding states (or principle/law of corresponding states) indicates that all fluids, when compared at the same reduced temperature and reduced pressure, have approximately the same compressibility factor and all deviate from ideal gas behavior to about the same degree. [1] [2]

  4. Compressibility - Wikipedia

    en.wikipedia.org/wiki/Compressibility

    The compressibility factor is defined as = where p is the pressure of the gas, T is its temperature, and is its molar volume, all measured independently of one another. In the case of an ideal gas, the compressibility factor Z is equal to unity, and the familiar ideal gas law is recovered:

  5. Reduced properties - Wikipedia

    en.wikipedia.org/wiki/Reduced_properties

    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]

  6. Properties of water - Wikipedia

    en.wikipedia.org/wiki/Properties_of_water

    The compressibility of water is a function of pressure and temperature. At 0 °C, at the limit of zero pressure, the compressibility is 5.1 × 10 −10 Pa −1. At the zero-pressure limit, the compressibility reaches a minimum of 4.4 × 10 −10 Pa −1 around 45 °C before increasing again

  7. Cubic equations of state - Wikipedia

    en.wikipedia.org/wiki/Cubic_equations_of_state

    The largest and the lowest solution are the gas and liquid reduced volume. In this situation, the Maxwell construction is sometimes used to model the pressure as a function of molar volume. The compressibility factor = / is often used to characterize non-ideal behavior. For the van der Waals equation in reduced form, this becomes

  8. Dimensionless numbers in fluid mechanics - Wikipedia

    en.wikipedia.org/wiki/Dimensionless_numbers_in...

    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.

  9. Compressed fluid - Wikipedia

    en.wikipedia.org/wiki/Compressed_fluid

    The compressed fluid region is located to the left of the blue line (the liquid-vapor phase boundary). The international pictogram for compressed gases. A compressed fluid (also called a compressed or unsaturated liquid , [ 1 ] subcooled fluid or liquid ) is a fluid under mechanical or thermodynamic conditions that force it to be a liquid .