Gravity Effects near the Gas-Liquid Critical Point

P. C. Hohenberg and M. Barmatz
Phys. Rev. A 6, 289 – Published 1 July 1972
PDFExport Citation

Abstract

The "linear-model" parametric equation of state of Schofield, Litster, and Ho is used to analyze the effect of gravity near the gas-liquid critical point of a fluid. Detailed results are presented on the density distribution as a function of height, the constant-volume specific heat, and the low-frequency sound velocity, for arbitrary points in the (ρ, T) plane near the critical point. The influence of gravity on the determination of critical exponents is also considered. It is concluded that even for the thinnest practical samples, gravity corrections may have a significant effect on the exponents. The present theory permits gravity corrections to be made in a self-consistent way, with high accuracy.

  • Received 16 December 1971

DOI:https://doi.org/10.1103/PhysRevA.6.289

©1972 American Physical Society

Authors & Affiliations

P. C. Hohenberg and M. Barmatz

  • Bell Laboratories, Murray Hill, New Jersey 07974

References (Subscription Required)

Click to Expand
Issue

Vol. 6, Iss. 1 — July 1972

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×