Algunes reflexions al voltant del tractament de l'equilibri químic en el batxillerat Authors Francesc A. Centellas i Masuet Abstract This paper compares the explanation of chemical equilibrium when the author was a student, to the current one in Catalonian high schools today. It can be seen that the current chemical equilibrium explanation is more extensive and it has a greater conceptual importance than in the past. This can cause a problem if not enough time is given to teaching the subject, leading to a poor understanding of the meaning and use of the physicochemical magnitudes and constants. At the same time, this problem can hinder the reaching of other basic goals. On the other hand, after the revision of the most used chemistry textbooks at high school level, a reconsideration of some aspects of the chemical equilibrium explanation is proposed. And so, some of the observed problems with the textbooks are discussed and alternative proposals for a clearer treatment of the subject are suggested. Downloads Text complet (Català) Published 2008-10-08 Issue No. 1 (2008) Section Conceptes i models químics License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Educació Química, authors accept the following terms:Authors assign to Societat Catalana de Química (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Educació Química.Authors answer to Societat Catalana de Química for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana de Química declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.Educació Química is not responsible for the ideas and opinions expressed by the authors of the published articles.