Beattie-Bridgeman Equation of State: The Beattie-Bridgeman equation of state was proposed in It has five experimentally determined constants. A some what more complex equation is the Beattie-Bridgeman equation. P = R T d + (B R T – A – R c / T2) d2 + (- B b R T + A a – R B c / T2) d3 + R B b c d4 / T2. Orig. Receipt Date: DEC Country of Publication: United States. Language: English. Subject: PHYSICS; BEATTIE-BRIDGEMAN EQUATION; ENTROPY;.

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Back to tab navigation Download options Please wait Search articles by author J. The constants of the Beattie-Bridgeman equation. For most applications, such a detailed analysis is unnecessary, and the ideal gas approximation can be used with reasonable accuracy.

The compressibility factor Z is a measure of deviation from the ideal-gas behavior. The constants of the Beattie-Bridgeman equation J. If the material has been adapted instead of reproduced from the original RSC publication “Reproduced from” can be substituted with “Adapted from”. The following equation is the ideal-gas equation of state.

Equations of State

Retrieved from ” https: These parameters can be determined:. From Wikipedia, the free encyclopedia. Beattje data from CrossRef. Authors contributing to RSC publications journal articles, books or book chapters do not need to formally request permission to reproduce material contained in btidgeman article provided that the correct acknowledgement is given with the reproduced material.


Robinson [3] has the interesting property being useful in modeling some liquids as well as real gases. Cengel and Michael A. Back to tab navigation Fetching data from CrossRef. Industrial and Engineering Chemistry: Van der Waals Equation of State: Go to our Instructions for using Copyright Clearance Center page for details. To understand the behaviour of real gases, the following must be taken into account: For reproduction of material from NJC: Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Where p is the pressure, T is the temperature, R the ideal gas constant, and V m the molar volume. The following beartie equations which are based on assumptions and experiments can give more accurate result over a larger range.


Z can be either greater or less than 1 for real gases. This equation is known to be reasonably accurate for densities up to about 0. Benedict, Webb, and Rubin raised the number of experimentally determined constants in the Beattie-Bridgeman Equation of State to eight in On the other hand, real-gas models have to be used near the condensation point of gases, near critical pointsat very high pressures, to explain the Joule—Thomson effect and in other less usual cases.


Reproduced material should be attributed as follows: Van der Waals equation of state is the first attempt to model the behavior of a real gas.

You do not have JavaScript enabled. For reproduction of material from PCCP: The Wohl equation named after A. For reproduction of material from PPS: From the generalized compressibility chart, the following observations can be made.

The Redlich—Kwong equation is another two-parameter equation that is used to model real gases.

Equations of State

The first page of this article is displayed as the abstract. Percentage of error involved in assuming steam to be an ideal gas Click to view Movie 68 kB. In all cases the Ref. Transactions of the Faraday Society.

Berthelot [1] is very rarely used. Jump to main content.

The properties with a bar on top are molar basis. Previous Article Next Article.

Peng—Robinson equation of state named after D. Jump to site search. In the vicinity of the critical point, the gases deviate from ideal beathie greatly.