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Time-Dependent Changes in a Shampoo Bubble
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Abstract
This article demonstrates the fascinating phenomenon of time evolution of a shampoo bubble through experiments that can be performed by undergraduate students. The changes in thickness of the bubble films with time are followed by UV-vis spectroscopy. The change in chemical composition as a bubble film evolves is monitored by FTIR spectroscopy. It is observed that the change in thickness of a typical shampoo bubble film enclosed in a container is gradual and slow, and the hydrocarbon components of the bubble drain from the bubble much more slowly than water. An additional agent, such as acetonitrile, strikingly alters the dynamics of evolution of such a bubble.
Keywords (Audience):
Second-Year UndergraduateKeywords (Domain):
Physical ChemistryKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
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This article has been cited by 5 ACS Journal articles (5 most recent appear below).
Soap Bubbles in Analytical Chemistry. Conductometric Determination of Sub-Parts Per Million Levels of Sulfur Dioxide with a Soap Bubble
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Mriganka Chakraborty , Devasish Chowdhury and Arun ChattopadhyayJournal of Chemical Education2003 80 (7), 806A simpler version of the well-established technique of spin-coating thin polymer films on glass slides is described. Starting with simple instrumentation and using an ordinary, commercially available cooling fan (a "CPU cooler"), a method of spin-coating ...
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Nsoki Phambu , Bernard Humbert and Andre BurneauJournal of Chemical Education2002 79 (9), 1117We show here how bayerite, a polymorphic form of aluminum trihydroxides, can be synthesized and characterized by simple spectroscopic methods. Purification of the product by washing with water can be monitored by diffuse reflectance infrared spectra. A ...
Simultaneous Measurement of Flowing Fluid Layer and Film Thickness of a Soap Bubble Using a UV−Visible Spectrophotometer
Tridib Kumar Sarma and Arun ChattopadhyayLangmuir2001 17 (21), 6399-6403Simultaneous Measurement of Flowing Fluid Layer and Film Thickness of a Soap Bubble Using a UV−Visible Spectrophotometer
Tridib Kumar Sarma and Arun ChattopadhyayLangmuir2001 17 (21), 6399-6403In this Letter we report a method for observing Marangoni convection driven fluid flow, in various soap bubble systems, using a UVvisible spectrophotometer. We also report time-dependent simultaneous measurement of the thickness of the fluid layer and ...
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- Received: August 03, 2009
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