Le Chatelier’s Principle Observed in Real-Time: A Classroom Demonstration Using Digital Probeware

• Alisha U. Asif ^[1] ; Alexa K. Beathard ^[1] ; Ronald M. Bercaw ^[1] ; Stephen G. Prilliman ^[1]
  1. [1] Oklahoma City University

     Oklahoma City University

     Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 101, Nº 1, 2024, págs. 227-231
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A demonstration that provides time-dependent data exemplifying Le Chatelier’s principle was created and tested in a classroom setting. The demonstration is safe and reliable and uses common lab glassware and only club soda to create the equilibrium reaction system. Real-time pressure versus time data is displayed during the demonstration allowing students to observe the pressure of carbon dioxide as the system is perturbed and then shifts to re-establish equilibrium. The demonstration is carried out using the predict-observe-explain model for greater pedagogical impact.