Empirical Determination of Intrinsic Behaviors of the Pressure, Volume, Temperature and Entropy for the Isothermal, Isobaric, Isochoric and Isoentropic Processes for Polyethylene.
Saved in:
| Title: | Empirical Determination of Intrinsic Behaviors of the Pressure, Volume, Temperature and Entropy for the Isothermal, Isobaric, Isochoric and Isoentropic Processes for Polyethylene. |
|---|---|
| Authors: | Saeki, Susumu1 (AUTHOR) susaekimu@ct.em-net.ne.jp |
| Source: | Journal of Macromolecular Science: Physics. 2026, Vol. 65 Issue 5, p807-818. 12p. |
| Subjects: | Isothermal processes, Isobaric processes, Entropy, Isochoric processes, Temperature, Magnitude (Mathematics), Fluid pressure, Isentropic processes |
| Abstract: | The intrinsic behaviors of the pressure (P), volume (V), temperature (T) and entropy (S) for the isothermal, isobaric, isochoric and isoentropic processes for polyethylene (PE) have been determined based on the intrinsic equation of state (Intrinsic Eos) determined by the empirical P-V-T-S Eos for PE. When a compressive outside pressure was applied to the solid-PE in the isothermal process, PT,out, the increase of the pressure followed the decrease of the volume of PE, ΔVT < 0, and the decrease of the entropy of PE, ΔST < 0, due to ΔVT < 0, which created the inside pressure of PE, PT,in, and to reach an equilibrium condition that PT,out = PT,in where ΔX = Xafter-change -Xbefore-change and X = V and S. The intrinsic behavior of the thermodynamic energies for PE in the isothermal process, such as a change of enthalpy, ΔH, were also evaluated from TΔST and ∫VTdPT. Calculations similar to those in the isothermal process were done for the isobaric, isochoric and isoentropic processes. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Macromolecular Science: Physics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 192628663 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Empirical Determination of Intrinsic Behaviors of the Pressure, Volume, Temperature and Entropy for the Isothermal, Isobaric, Isochoric and Isoentropic Processes for Polyethylene. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Saeki%2C+Susumu%22">Saeki, Susumu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> susaekimu@ct.em-net.ne.jp</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Macromolecular+Science%3A+Physics%22">Journal of Macromolecular Science: Physics</searchLink>. 2026, Vol. 65 Issue 5, p807-818. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Isothermal+processes%22">Isothermal processes</searchLink><br /><searchLink fieldCode="DE" term="%22Isobaric+processes%22">Isobaric processes</searchLink><br /><searchLink fieldCode="DE" term="%22Entropy%22">Entropy</searchLink><br /><searchLink fieldCode="DE" term="%22Isochoric+processes%22">Isochoric processes</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Magnitude+%28Mathematics%29%22">Magnitude (Mathematics)</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+pressure%22">Fluid pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Isentropic+processes%22">Isentropic processes</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The intrinsic behaviors of the pressure (P), volume (V), temperature (T) and entropy (S) for the isothermal, isobaric, isochoric and isoentropic processes for polyethylene (PE) have been determined based on the intrinsic equation of state (Intrinsic Eos) determined by the empirical P-V-T-S Eos for PE. When a compressive outside pressure was applied to the solid-PE in the isothermal process, PT,out, the increase of the pressure followed the decrease of the volume of PE, ΔVT < 0, and the decrease of the entropy of PE, ΔST < 0, due to ΔVT < 0, which created the inside pressure of PE, PT,in, and to reach an equilibrium condition that PT,out = PT,in where ΔX = Xafter-change -Xbefore-change and X = V and S. The intrinsic behavior of the thermodynamic energies for PE in the isothermal process, such as a change of enthalpy, ΔH, were also evaluated from TΔST and ∫VTdPT. Calculations similar to those in the isothermal process were done for the isobaric, isochoric and isoentropic processes. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Macromolecular Science: Physics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192628663 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/00222348.2025.2469359 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 807 Subjects: – SubjectFull: Isothermal processes Type: general – SubjectFull: Isobaric processes Type: general – SubjectFull: Entropy Type: general – SubjectFull: Isochoric processes Type: general – SubjectFull: Temperature Type: general – SubjectFull: Magnitude (Mathematics) Type: general – SubjectFull: Fluid pressure Type: general – SubjectFull: Isentropic processes Type: general Titles: – TitleFull: Empirical Determination of Intrinsic Behaviors of the Pressure, Volume, Temperature and Entropy for the Isothermal, Isobaric, Isochoric and Isoentropic Processes for Polyethylene. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Saeki, Susumu IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00222348 Numbering: – Type: volume Value: 65 – Type: issue Value: 5 Titles: – TitleFull: Journal of Macromolecular Science: Physics Type: main |
| ResultId | 1 |
