Interpretation and correlation of acentric factors in terms of molecular energies

Мачин, И.Ф.; Olivera-Fuentes, Claudio

doi:10.3233/jcm-160670

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2022

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“…In recent years, several studies have been made on the acentric factors of various substances. Acentric factors are correlated [35] to molecular energies of n-alkanes. Artificial neural network group contribution method is used [36] to calculate the acentric factors of pure compounds.…”

Section: Introductionmentioning

confidence: 99%

Temperature dependence of the acentric factor of normal hydrogen, orthohydrogen and parahydrogen

Ramesh

Balasubramanian

2022

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Temperature-dependence correlations of vapor pressure and acentric factor for normalhydrogen(n-H2), orthohydrogen(o-H2) and parahydrogen(p-H2), have been formulated. The obtained correlations are statistically excellent. The characteristic parameters such as the Pitzer’s acentric factor, Riedel’s parameter, Filippov’s parameter have been determined for n-H2, o-H2 and p-H2. And, the curvatures of vapor pressure curve for n-H2, o-H2 and p-H2 have been determined in a wide range of temperature. It is found that the curvatures of vapor pressure curve for n-H2, o-H2 and p-H2 have a maximum at about 17.11K, 17.12K and 17.00K, respectively.

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Section: Introductionmentioning

confidence: 99%