Zeno line: Difference between revisions

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:<math>Z:= \frac{pV}{Nk_BT}=1</math>
:<math>Z:= \frac{pV}{Nk_BT}=1</math>
==Batchinsky law==
==Batchinsky law==
The Batchinsky law <ref>[http://dx.doi.org/10.1002/andp.19063240205 A. Batschinski "Abhandlungen über Zustandsgleichung; Abh. I: Der orthometrische Zustand", Annalen der Physik '''19''' pp. 307-309 (1906)]</ref> states that:
The Batchinsky law <ref>[http://dx.doi.org/10.1002/andp.19063240205 A. Batschinski "Abhandlungen über Zustandsgleichung; Abh. I: Der orthometrische Zustand", Annalen der Physik '''19''' pp. 307-309 (1906)]</ref>, derived from the [[van der Waals equation of state]], states that:


:<math>\frac{\rho}{\rho_B} + \frac{T}{T_B} = 1</math>
:<math>\frac{\rho}{\rho_B} + \frac{T}{T_B} = 1</math>


where <math>\rho_B</math> is the value of the density obtained by the extrapolating the coexistence curve into the low temperature region beyond the [[triple point]], and <math>T_B</math> is the [[Boyle temperature]].
where <math>\rho_B</math> is the value of the density obtained by the extrapolating the coexistence curve into the low temperature region beyond the [[triple point]], and <math>T_B</math> is the [[Boyle temperature]].
==References==
==References==
<references/>
<references/>

Revision as of 15:42, 6 October 2010

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The Zeno line is the name given to a line along which the compressibility factor is unity [1]

Batchinsky law

The Batchinsky law [2], derived from the van der Waals equation of state, states that:

where is the value of the density obtained by the extrapolating the coexistence curve into the low temperature region beyond the triple point, and is the Boyle temperature.

References

  1. D. Ben-Amotz and D. R. Herschbach, "Correlation of the Zeno (Z=1) line for supercritical fluids with vapor-liquid rectilinear diameters", Israel Journal of Chemistry 30 pp. 59-68 (1990)
  2. A. Batschinski "Abhandlungen über Zustandsgleichung; Abh. I: Der orthometrische Zustand", Annalen der Physik 19 pp. 307-309 (1906)

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