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  Home > JCE Print > Journal of Chemical Education > Issues > 2006  > January  >
In the Laboratory
Wetting Experiments with a "Web Cam" in an Undergraduate Student Laboratory
Hernán Ritacco
Departamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires, 1063 Buenos Aires, Argentina
Cover
January 2006
Vol. 83 No. 1
p. 114
Abstract
A simple experimental device to study wetting phenomena is presented. A low-cost camera, "Web cam", is used to follow the wetting dynamics of a liquid drop on a solid surface. The dynamics are related to the surface tension and the viscosity of the liquid via the Navier–Stokes equation. The instructor can introduce physicochemical, rheological, and fluid mechanics concepts with this experiment. Typical results obtained by the students are presented.
Supplement
A detailed theory section and notes for the instructor are available.
*  Contents JCE2006p0114W.doc (Microsoft Word)
*  Download
JCE2006p0114W.pdf

JCE2006p0114W.zip
More Information
*  Citation
 Ritacco, Hernán. J. Chem. Educ. 2006 83 114.
*  Keywords
 Chemical Engineering; Hands-On Learning / Manipulatives; Laboratory Equipment / Apparatus; Laboratory Instruction; Liquids; Physical Chemistry; Surface Science; Upper-Division Undergraduate
*  History
 Created:
Last Updated:		 12/1/2005
12/7/2005
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