Fog Machines, Vapors, and Phase Diagrams

Ed Vitz
Department of Physical Sciences, Kutztown University, Kutztown, PA 19530
Kenneth S. Lyle
Department of Chemistry, Duke University, Durham, NC 27708
J. Chem. Educ., 2008, 85 (10), p 1385
DOI: 10.1021/ed085p1385
Publication Date (Web): October 1, 2008

Abstract

A series of demonstrations is described that elucidate the operation of commercial fog machines by using common laboratory equipment and supplies. The formation of fogs, or "mixing clouds", is discussed in terms of the phase diagram for water and other chemical principles. The demonstrations can be adapted for presentation suitable for elementary through tertiary levels.

Keywords (Audience):

Elementary / Middle School Science

Keywords (Domain):

Demonstrations

Keywords (Feature):

JCE DigiDemos: Tested Demonstrations

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Liquids

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History

  • Received: August 03, 2009

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