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A demonstration of surface tension and contact angle

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H. D. Gesser

Department of Chemistry, University of Manitoba, Winnipeg, MB R3T2N2, Canada

Paul Krause

Department of Chemistry, University of Central Arkansas, Conway, AR 72305

J. Chem. Educ., 2000, 77 (1), p 58

DOI: 10.1021/ed077p58

Publication Date (Web): January 1, 2000

Abstract

The effect of surface properties on contact angle is illustrated by changing the hydrophilic surface of a hole into a wetting hydrophilic surface, thereby permitting water to flow through the hole.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Demonstrations

Keywords (Feature):

Tested Demonstrations

Keywords (Subject):

Surface Science

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Citing Articles

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This article has been cited by 3 ACS Journal articles (3 most recent appear below).

Wetting Experiments with a "Web Cam" in an Undergraduate Student Laboratory
Hernán Ritacco
Journal of Chemical Education2006 83 (1), 114
- Wetting Experiments with a "Web Cam" in an Undergraduate Student Laboratory
  Hernán Ritacco
  Journal of Chemical Education2006 83 (1), 114
  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 ...
  Abstract | Hi-Res PDF | PDF w/ Links
Axisymmetric Liquid Hanging Drops
Tatiana Yu. Latychevskaia , Erich C. Meister
Journal of Chemical Education2006 83 (1), 117
- Axisymmetric Liquid Hanging Drops
  Tatiana Yu. Latychevskaia , Erich C. Meister
  Journal of Chemical Education2006 83 (1), 117
  The formation of liquid drops delivered from a circular capillary has found application in drop-volume tensiometers ranging from the early stalagmometer to more recent computer-controlled instruments. Although the phenomenon of drop formation can be ...
  Abstract | Hi-Res PDF | PDF w/ Links
Tears of Wine
Marcos Gugliotti , Todd Silverstein
Journal of Chemical Education2004 81 (1), 67
- Tears of Wine
  Marcos Gugliotti , Todd Silverstein
  Journal of Chemical Education2004 81 (1), 67
  The motion of wine drops observed on the internal walls of a glass, usually called "tears of wine", is perhaps the oldest known example of surface tension driven flows.
  Abstract | Hi-Res PDF | PDF w/ Links