4D50.65 - Diffusion Through a Balloon

See paragraph one in the procedure section.
Code Number:
Demo Title:
Diffusion Through a Balloon
Pressure Diffusion
Area of Study:
Heat & Fluids
Vanilla extract, small balloons, eye dropper, Plexiglas box.

Place 10 to 15 vanilla extract into one of the balloons being careful not to get any on the outside.  Blow the balloon up to a reasonable size and place in the box.  After a few minutes open the box and a very noticeable smell of vanilla will be present.

  • James Jadrich, Crystal Bruxvoort, "Investigating Diffusion and Entropy with Carbon Dioxide-Filled Balloons", TPT, Vol. 48, #6, Sept. 2010, p. 388
  • Frank Lee, Herman Batelaan, "Author's Response", TPT, Vol. 48, # 6, September 2010, p. 359.
  • Lester Evans, "More on Nitrogen in Tires", TPT, Vol. 48, # 6, September 2010, p. 359.
  • Peter D. Noerdlinger, "Not Worth the Cost", TPT, Vol. 48, # 6, September 2010, p. 359.
  • Bryan Leonard, "Nitrogen in Racing Tires", TPT, Vol. 48, # 6, September 2010, p. 359.
  • Michele D'Anna, Paolo Lubini, "Chemical Potential", TPT, Vol. 48, # 6, September 2010, p. 358
  • Dick Walton, "Self-Inflating Balloons", TPT, Vol. 28, # 5, May 1990, p. 324.
  • Frank Lee and Herman Batelaan, "The Answer to Rising Gas Prices... Nitrogen?",  TPT, Vol. 48, # 3, Mar. 2010, p. 160.
  • Roger A. Key and B.D. DePaola, "A Simple Apparatus for Demonstration of Gaseous Diffusion", TPT, Vol. 29, # 8, Nov. 1991, p. 522.
  • Janice VanCleave,  "Spicy Escape",  Biology for Every Kid - 101 Easy Experiments That Really Work, p. 8- 9.
  • Borislaw Bilash II, “Rates of Diffusion“, A Demo A Day – A Year of Physical Science Demonstrations, p. 26.

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