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THE STUDY OF MENTAL MODEL ON N-HEXANE-METHANOL BINARY SYSTEM (THE VALIDATION OF PHYSICAL CHEMISTRY PRACTICUM PROCEDURE)

Jurnal Pendidikan IPA Indonesia · Vol. 5 No. 1 (2016) · pp. 6–13

DOI
10.15294/jpii.v5i1.5783
ISSN
2089-4392, 2339-1286
Published
2016-04-18
Publisher
Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)
Language
eng
License
creativecommons.org/licenses/by/4.0

Abstract

N-hexane and methanol systen is one example of a binary system that shows the solubility properties of reciprocity. This study aimed to assess the mental model of a n-hexane-methanolbinary system. Interaction at the submicroscopic level between n-hexane and methanol molecules is described in the form of mental model. Penelitian ini menggunakan cloud point method untuk memperoleh data kesetimbangan cair-cair sistem n-heksana-metanol. This study used a cloud point method to obtain data on liquid-liquid equilibrium on the system of n-hexane-methanol. Research data showed the maximum critical temperature (above the consolute temperature) of this system was at 42.95 °C with Xmethanol = 0.475 (P= 715 mmHg). Data from the laboratory observations was representedas a symbolic level in the form of the curve of correlation between mole fraction of methanol with temperature in a phase diagram system of n-hexane-methanol. The curve that was formed was asymmetric. It indicated that the solubility of n-hexane in methanol was relatively small compared to the solubility of methanol in n-hexane. Mental model of the binary system of n-hexane-methanol in four curve areasin the form of visualization of the interaction between n-hexane and methanol molecules through London force. In thermodynamics, each component had the same chemical potential inboth phases at equilibrium state. This study results could have a contribution to form a mental model on the student as the prospective chemistry subject teachers.

Keywords

Collaboration network of the authors

22 authors · 46 co-authorship links · 22 across different organisations

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Indonesia University of Education
  • Indonesia Defense University
  • Cenderawasih University
  • State University of Semarang
  • Kasetsart University
  • Gyeongin National University of Education
  • Universitas Katolik Weetebula
  • Other organisations
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
E. Nursa'adahAffiliation unknown2
Ahmad MudzakirIndonesia University of Education2
Muhamad TaufiqState University of Semarang1
Ida KaniawatiIndonesia University of Education1
Kulthida NugulthamKasetsart University1
Hyung-Yong ParkGyeongin National University of Education1
Geterudis KeransUniversitas Katolik Weetebula1
Yayan SanjayaIndonesia University of Education1
Yustinus Ghanggo AteAustralian National University1
Elva StiawanIndonesia Defense University1
Basuki RahmatIndonesia Defense University1
Ibnu Saepul RohmanIndonesia University of Education1
Hans‐Dieter BarkeUniversity of Münster1
Sri MulyaniIndonesia University of Education1
Wiji WijiIndonesia University of Education1
Muhammad Nurul HanaIndonesia University of Education1
Hernani HernaniIndonesia University of Education1
Tiurlina SiregarAffiliation unknown1
Endang ParwitiAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/nju/index.php/jpii/oai, first harvested 29 Okt 2026, last seen 1 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">THE STUDY OF MENTAL MODEL ON N-HEXANE-METHANOL BINARY SYSTEM (THE VALIDATION OF PHYSICAL CHEMISTRY PRACTICUM PROCEDURE)</dc:title>
	<dc:creator>Albaiti, A.</dc:creator>
	<dc:creator>Liliasari, L.</dc:creator>
	<dc:creator>Sumarna, O.</dc:creator>
	<dc:subject xml:lang="en-US">n-hexane-methanol system; mental model, macroscopic level; submicroscopic level; symbolic level.</dc:subject>
	<dc:description xml:lang="en-US">N-hexane and methanol systen is one example of a binary system that shows the solubility properties of reciprocity. This study aimed to assess the mental model of a n-hexane-methanolbinary system. Interaction at the submicroscopic level between n-hexane and methanol molecules is described in the form of mental model. Penelitian ini menggunakan cloud point method untuk memperoleh data kesetimbangan cair-cair sistem n-heksana-metanol. This study used a cloud point method to obtain data on liquid-liquid equilibrium on the system of n-hexane-methanol. Research data showed the maximum critical temperature (above the consolute temperature) of this system was at 42.95 °C with Xmethanol = 0.475 (P= 715 mmHg). Data from the laboratory observations was representedas a symbolic level in the form of the curve of correlation between mole fraction of methanol with temperature in a phase diagram system of n-hexane-methanol. The curve that was formed was asymmetric. It indicated that the solubility of n-hexane in methanol was relatively small compared to the solubility of methanol in n-hexane. Mental model of the binary system of n-hexane-methanol in four curve areasin the form of visualization of the interaction between n-hexane and methanol molecules through London force. In thermodynamics, each component had the same chemical potential inboth phases at equilibrium state. This study results could have a contribution to form a mental model on the student as the prospective chemistry subject teachers.</dc:description>
	<dc:publisher xml:lang="en-US">Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)</dc:publisher>
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	<dc:date>2016-04-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/nju/jpii/article/view/5783</dc:identifier>
	<dc:identifier>10.15294/jpii.v5i1.5783</dc:identifier>
	<dc:source xml:lang="en-US">Jurnal Pendidikan IPA Indonesia; Vol 5, No 1 (2016): April 2016; 6-13</dc:source>
	<dc:source>2089-4392</dc:source>
	<dc:source>2339-1286</dc:source>
	<dc:source>10.15294/jpii.v5i1</dc:source>
	<dc:language>eng</dc:language>
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	<dc:rights xml:lang="en-US">Copyright (c) 2016 Jurnal Pendidikan IPA Indonesia (Indonesian Journal of Science Education)</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by/4.0</dc:rights>
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