1. Corresponding states principle

The principle of corresponding states has been used to calculate specific volumes or densities of fluids, based on generalized correlations of the compressibility factor (Z = pV / RT ) represented as a function of reduced temperatures and pressures (T _R and p _R ).

Remember that : $T_{R} = \frac{I}{T_{c}} et p_{R} = \frac{p}{p_{c}}$

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Corresponding states principle

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page Physical constants of pure fluids: estimation methods

Estimation of critical constants

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References

(1) - NELSON (L.C.), OBERT (E.F.) - Generalized PVT properties of gases - . Trans. Am. Soc. Mech. Eng. 76, p. 1057-66 (1954).
(2) - BREEDVELD (G.J.F.), PRAUSNITZ (J.M.) - Thermodynamic properties of supercritical fluids and their mixtures at very high pressure -...

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