A thermodynamic equation of state for the critical region of argon

Rizi, Aicha; Abbaci, Azzedine

doi:10.1016/j.molliq.2012.04.010

Cited by 17 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The problem of constructing a fundamental equation of state (FEOS) has attracted attention of researchers considered a substance behavior in the critical region [1][2][3][4][5][6][7][8][9][10][11][12]. Especially this problem is investigated concerning some metals, which are characterized by the critical point locating at high temperatures and pressures [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Our analysis [19] has shown that the crossover equation [1][2][3][4][5] has an area of applicability: 0.4 ω 1.3 and 0.97 t 1.3, here ω = ρ/ρ c and t = T /T c . Thus, an equation of state [5] represents:…”

Section: Introductionmentioning

confidence: 99%

“…Articles [1-3] represent a crossover equation of state written in a parametric form. There is a transition of the crossover equation to Scofield-Litster-Ho model (LM) [18] in an asymptotic vicinity of the critical point.Our analysis [19] has shown that the crossover equation [1][2][3][4][5] has an area of applicability: 0.4 ω 1.3 and 0.97 t 1.3, here ω = ρ/ρ c and t = T /T c . Thus, an equation of state [5] represents:…”

mentioning

confidence: 99%

See 2 more Smart Citations

A new variant of a scaling hypothesis and a fundamental equation of state based on it

Kudryavtseva

Рыков

et al. 2018

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Abstract. This paper deals with a fundamental equation of state (FEOS) for substances. We have suggested a new method. It allows constructing FEOS that is based on the scaling theory of critical phenomena and describes thermodynamic properties related to liquid and gas phases of a substance in a wide range of the pressures and temperatures. In the framework of the methodological approach, we have provided: (i) a transition of FEOS in a virial equation of state in the low density region; (ii) a transition of FEOS in a Widom equation of state in the critical region. The method has been tested on the example of FEOS of R218. The area of applicability of FEOS is 0 < ρ/ρc < 3.2 in the density and 133 < T < 440 K in the temperature.We have compared FEOS with some equations of state and discussed the results. IntroductionThe problem of constructing a fundamental equation of state (FEOS) has attracted attention of researchers considered a substance behavior in the critical region [1][2][3][4][5][6][7][8][9][10][11][12]. Especially this problem is investigated concerning some metals, which are characterized by the critical point locating at high temperatures and pressures [13][14][15][16][17]. We have analyzed main approaches those let us get successful results. Articles [1-3] represent a crossover equation of state written in a parametric form. There is a transition of the crossover equation to Scofield-Litster-Ho model (LM) [18] in an asymptotic vicinity of the critical point.Our analysis [19] has shown that the crossover equation [1][2][3][4][5] has an area of applicability: 0.4 ω 1.3 and 0.97 t 1.3, here ω = ρ/ρ c and t = T /T c . Thus, an equation of state [5] represents:

show abstract