Isamar Zarco-Delgado, H. N. Núñez-Yépez, A. L. Salas-Brito
{"title":"A note on producing supercooled water in a teaching laboratory","authors":"Isamar Zarco-Delgado, H. N. Núñez-Yépez, A. L. Salas-Brito","doi":"10.31349/revmexfise.18.020210","DOIUrl":null,"url":null,"abstract":"As we lower the temperature of water at a certain point it changes from liquid to solid. Yet under certain conditions it is possible to keep the water in a non-equilibrium, liquid-like phase, called \\emph{supercooled water}, thus avoiding solidification. Water in such state may freeze under the slightless perturbation, as stirring it a little. The existence of supercooled water is usually known to the students since the introductory courses, but it seems to be difficult to attest in an elementary undergraduate laboratory. A simple method for supercooling water is, however, readily available. It is this short paper aim to describe such a method in a form that may be readily performed in a teaching laboratory.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista Mexicana De Fisica E","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31349/revmexfise.18.020210","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Social Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
As we lower the temperature of water at a certain point it changes from liquid to solid. Yet under certain conditions it is possible to keep the water in a non-equilibrium, liquid-like phase, called \emph{supercooled water}, thus avoiding solidification. Water in such state may freeze under the slightless perturbation, as stirring it a little. The existence of supercooled water is usually known to the students since the introductory courses, but it seems to be difficult to attest in an elementary undergraduate laboratory. A simple method for supercooling water is, however, readily available. It is this short paper aim to describe such a method in a form that may be readily performed in a teaching laboratory.
期刊介绍：
The Revista Mexicana de Física (Rev. Mex. Fis.) publishes original papers of interest to our readers from the physical science com unity. Language may be English or Spanish, however, given the nature of our readers, English is recommended. Articles are classified as follows:
Research. Articles reporting original results in physical science.
Instrumentation. Articles reporting original contributions on design and construction of scientific instruments. They should present new instruments and techniques oriented to physical science problems solutions. They must also report measurements performed with the described instrument.
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Comments. Short papers (four pages maximum) that assess critically papers by others authors previously published in the Revista Mexicana de Física. A comment should state clearly to which paper it refers.
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