A Computer Model for Soda Bottle Oscillations:: "The Bottelator"

• Leonard J. Soltzberg ^[1] ; Peter G. Bowers ^[1] ; Christine Hofstetter ^[1]
  1. [1] Simmons College

     Simmons College

     City of Boston, Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 74, Nº 6 (June), 1997, págs. 711-714
• Idioma: inglés
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• Resumen

  • Oscillatory release of gas sometimes occurs when a small pinhole is made in a bottle of commercial soda water. We present experimental documentation of these oscillations, and have modeled them using the Stella II® modeling package. The oscillations arise because the headspace above the liquid in the bottle is repressurized by escaping bubbles, thereby temporarily shutting off further bubble nucleation. The system makes an extremely simple demonstration of far-from-equilibrium oscillations.