<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2022000100150</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2022.1.79821</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Interpretaciones erróneas inducidas: el caso del diagrama de fases del azufre]]></article-title>
<article-title xml:lang="en"><![CDATA[Induced misinterpretations: the case of the sulfur phase diagram]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Andrade-Gamboa]]></surname>
<given-names><![CDATA[Julio José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Donati]]></surname>
<given-names><![CDATA[Edgardo R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Regional Universitario Bariloche  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de La Plata Facultad de Ciencias Exactas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>33</volume>
<numero>1</numero>
<fpage>150</fpage>
<lpage>161</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2022000100150&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2022000100150&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2022000100150&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los diagramas de fases de sustancias puras, a modo de gráficos de presión versus temperatura, suelen introducirse en cursos universitarios de química iniciales. Por lo general, se emplean diagramas esquemáticos, fuera de escala, para poder cubrir un rango completo de presiones y temperaturas. En ellos se acentúan o exageran ciertos detalles, con el fin de resaltar ciertos comportamientos de la sustancia considerada. Esto lleva el riesgo de inducir errores conceptuales que no están presentes en un diagrama en escala. Las representaciones gráficas son una herramienta especial para la adquisición de conceptos y el reconocimiento de fenomenologías físicas y químicas. Por esta razón, es necesario que en la enseñanza se preste atención y se realicen las aclaraciones suficientes a los estudiantes, para evitar concepciones erróneas producto de la distorsión inherente a un diagrama de fases esquemático. En el presente trabajo se toma como ejemplo el diagrama de fases del azufre, debido a que, tanto en libros de texto como en artículos científicos, suele mostrarse con algunos errores cualitativos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Pure substance phase diagrams, as pressure versus temperature graphs, are usually introduced in first university courses in chemistry. In general, off-scale schematic diagrams are used to cover a full range of pressures and temperatures. In them, to highlight certain behaviors of the substances, some details are accentuated or exaggerated, and this implies a greater risk of inducing comparative misconceptions than using scale diagrams. Taking in account that graphic representations are important tools in the teaching of concepts and in the recognition of physical and chemical phenomenologies, to avoid conceptual errors, schematic diagrams and their inherent distortions should be carefully discussed with students. In the present work, the sulfur phase diagram is taken as an example, because, both in textbooks and in scientific articles, it is often shown with some qualitative errors.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Diagramas de fases de un componente]]></kwd>
<kwd lng="es"><![CDATA[Equilibrio de fases, Ecuación de Clapeyron]]></kwd>
<kwd lng="es"><![CDATA[Azufre]]></kwd>
<kwd lng="es"><![CDATA[Errores gráficos]]></kwd>
<kwd lng="en"><![CDATA[One-component phase diagrams]]></kwd>
<kwd lng="en"><![CDATA[Phase equilibria]]></kwd>
<kwd lng="en"><![CDATA[Clapeyron equation]]></kwd>
<kwd lng="en"><![CDATA[Sulfur]]></kwd>
<kwd lng="en"><![CDATA[Graphic errors]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Atkins]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[de Paula]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Atkins. Química Física]]></source>
<year>2008</year>
<publisher-name><![CDATA[Editorial Panamericana]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chase]]></surname>
<given-names><![CDATA[M.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monograph No. 9. NIST-JANAF Thermochemical Tables]]></article-title>
<source><![CDATA[Journal of Physical and Chemical Reference Data]]></source>
<year>1998</year>
<page-range>1860</page-range><publisher-name><![CDATA[American Institute of Physics and American Chemical Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[A. G. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lobo]]></surname>
<given-names><![CDATA[L. Q.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The low-pressure phase diagram of sulfur]]></article-title>
<source><![CDATA[J. Chem. Thermodynamics]]></source>
<year>2011</year>
<volume>43</volume>
<page-range>95-104</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hawkes]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[There is no perceptible inflection at the triple point]]></article-title>
<source><![CDATA[J. Chem. Educ.]]></source>
<year>1999</year>
<volume>76</volume>
<page-range>226</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MacKay]]></surname>
<given-names><![CDATA[K.M.]]></given-names>
</name>
<name>
<surname><![CDATA[MacKay]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Henderson]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introduction to Modern Inorganic Chemistry]]></source>
<year>2002</year>
<page-range>472</page-range><publisher-name><![CDATA[Nelson Thornes Ltd.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meyer]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Elemental sulfur]]></article-title>
<source><![CDATA[Chemical Reviews]]></source>
<year>1976</year>
<volume>76</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>367-88</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Neummann]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dampfdruckmessungen an rhombischem und monoklinem Schwefel unterhalb des Schmelzpunktes]]></article-title>
<source><![CDATA[Zeitschrift für Physikalische Chemie]]></source>
<year>1934</year>
<volume>171A</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>416-20</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tammann]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Kristallisieren und Schmelzen, Leipzig]]></source>
<year>1903</year>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
