Comments on Fluctuation Theory Calculations of the Specific Heat near the Critical Point

1970 ◽  
Vol 52 (7) ◽  
pp. 3852 ◽  
Author(s):  
Raymond D. Mountain
Keyword(s):  
Specific Heat ◽  
Critical Point ◽  
Fluctuation Theory

A Rational Equation of State for Water and Water Vapor in the Critical Region

1964 ◽  
Vol 86 (3) ◽  
pp. 320-326 ◽  
Author(s):  
E. S. Nowak
Keyword(s):  
Water Vapor ◽  
Equation Of State ◽  
Thermodynamic Properties ◽  
Specific Heat ◽  
Critical Point ◽  
Critical Region ◽  
Constant Pressure ◽  
Parametric Equation ◽  
Enthalpy And Entropy ◽  
Specific Volumes

A parametric equation of state was derived for water and water vapor in the critical region from experimental P-V-T data. It is valid in that part of the critical region encompassed by pressures from 3000 to 4000 psia, specific volumes from 0.0400 to 0.1100 ft3/lb, and temperatures from 698 to 752 deg F. The equation of state satisfies all of the known conditions at the critical point. It also satisfies the conditions along certain of the boundaries which probably separate “supercritical liquid” from “supercritical vapor.” The equation of state, though quite simple in form, is probably superior to any equation heretofore derived for water and water vapor in the critical region. Specifically, the deviations between the measured and computed values of pressure in the large majority of the cases were within three parts in one thousand. This coincides approximately with the overall uncertainty in P-V-T measurements. In view of these factors, the author recommends that the equation be used to derive values for such thermodynamic properties as specific heat at constant pressure, enthalpy, and entropy in the critical region.

Study of the Specific-Heat Singularity ofHe3near Its Critical Point

1972 ◽  
Vol 6 (1) ◽  
pp. 364-377 ◽  
Author(s):  
G. Raymond Brown ◽  
Horst Meyer
Keyword(s):  
Specific Heat ◽  
Critical Point

Precision Measurement of the Specific Heat of CO2near the Critical Point

1970 ◽  
Vol 25 (16) ◽  
pp. 1086-1090 ◽  
Author(s):  
J. A. Lipa ◽  
C. Edwards ◽  
M. J. Buckingham
Keyword(s):  
Specific Heat ◽  
Critical Point ◽  
Precision Measurement
Sign in / Sign up

Export Citation Format

Share Document