A note on producing supercooled water in a teaching laboratory

Authors

  • Isamar Zarco-Delgado Universidad Autónoma Metropolitana, Unidad Iztapalapa
  • H. N. Núñez-Yépez Universidad Autónoma Metroolitana Unidad Iztapalapa
  • A. L. Salas-Brito Universidad Autónoma Metropolitana, Unidad Azcapotzalco

DOI:

https://doi.org/10.31349/RevMexFisE.18.020210

Keywords:

metastable states, supercooled water, undergraduate laboratories

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.

Author Biographies

Isamar Zarco-Delgado, Universidad Autónoma Metropolitana, Unidad Iztapalapa

Departamento de Física, estudiante

H. N. Núñez-Yépez, Universidad Autónoma Metroolitana Unidad Iztapalapa

Departamento de Física, Profesora Titular

A. L. Salas-Brito, Universidad Autónoma Metropolitana, Unidad Azcapotzalco

Departamento de Ciencias Básicas, Área de Física Teórica y Materia Condensada, Profesor Investigador Titular C

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Published

2021-07-02