Students"™ errors in solving numerical chemical-equilibrium problems
| dc.contributor.author | Kousathana, M. | en |
| dc.contributor.author | Tsaparlis, G. | en |
| dc.date.accessioned | 2015-11-24T16:48:27Z | |
| dc.date.available | 2015-11-24T16:48:27Z | |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/9325 | |
| dc.rights | Default Licence | - |
| dc.subject | problem solving | en |
| dc.subject | chemical-equilibrium problems | en |
| dc.subject | misconceptions | en |
| dc.subject | errors in chemical-equilibrium problem solving | en |
| dc.subject | misconceptions in chemical-equilibrium problem solving | en |
| dc.title | Students"™ errors in solving numerical chemical-equilibrium problems | en |
| heal.abstract | Chemical-equilibrium problems are among the most important and at the same time most complex and difficult general-chemistry problems. In this paper, errors made by the students, while solving such problems, are discussed. These errors are of two kinds: (i) Β‘randomΒ’ errors caused by hastiness, or by thoughtlessness, or by an overload of working memory, or by field dependence or a combination of the above factors. (ii) Β‘systematicΒ’ errors that are caused by misconception(s) or by a difficulty in understanding of the underlying theory, concepts, or processes. Students in their final upper-secondary school year (age 17-18), attending an elective chemistry course, participated (N = 120-148, depending on the question). The errors that were detected were categorised into five categories: (1) the equilibrium constant; (2) stoichiometry; (3) heterogeneous equilibria; (4) the direction of a reaction which is not at equilibrium (the disturbance of the chemical equilibrium); (5) gas equilibria and the ideal-gas law. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1039/B0RP90030C | - |
| heal.identifier.secondary | http://pubs.rsc.org/en/content/articlelanding/2002/rp/b0rp90030c#!divAbstract | - |
| heal.journalName | Chemistry Education Research and Practice | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2002 | - |
| heal.publisher | Royal Society of Chemistry | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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