{"title":"Quantifying the Dynamics of the Candy Cola Soda Geyser Using a Simple and Inexpensive Protocol","authors":"Thomas S. Kuntzleman*, and , Joshua B. Kenney, ","doi":"10.1021/acs.jchemed.3c00601","DOIUrl":null,"url":null,"abstract":"<p >A variety of methods have been used to analyze the kinetics of various processes related to the Diet Coke and Mentos experiment (also known as the soda geyser). However, none of these previous reports has undertaken a quantitative exploration of the dynamics of the creation and collapse of the soda geyser itself. We have therefore devised a method for monitoring the time dynamics of the height of the fountain generated when Mentos candies are added to Diet Coke. The procedure involves collecting a video of the fountain using a smartphone and subsequently analyzing the video using a smartphone application. It is noteworthy that the protocol can be used to investigate a process that lasts only 3–4 s with a time resolution of tens of milliseconds.</p>","PeriodicalId":43,"journal":{"name":"Journal of Chemical Education","volume":"100 10","pages":"4114–4118"},"PeriodicalIF":2.5000,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical Education","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.jchemed.3c00601","RegionNum":3,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A variety of methods have been used to analyze the kinetics of various processes related to the Diet Coke and Mentos experiment (also known as the soda geyser). However, none of these previous reports has undertaken a quantitative exploration of the dynamics of the creation and collapse of the soda geyser itself. We have therefore devised a method for monitoring the time dynamics of the height of the fountain generated when Mentos candies are added to Diet Coke. The procedure involves collecting a video of the fountain using a smartphone and subsequently analyzing the video using a smartphone application. It is noteworthy that the protocol can be used to investigate a process that lasts only 3–4 s with a time resolution of tens of milliseconds.
期刊介绍：
The Journal of Chemical Education is the official journal of the Division of Chemical Education of the American Chemical Society, co-published with the American Chemical Society Publications Division. Launched in 1924, the Journal of Chemical Education is the world’s premier chemical education journal. The Journal publishes peer-reviewed articles and related information as a resource to those in the field of chemical education and to those institutions that serve them. JCE typically addresses chemical content, activities, laboratory experiments, instructional methods, and pedagogies. The Journal serves as a means of communication among people across the world who are interested in the teaching and learning of chemistry. This includes instructors of chemistry from middle school through graduate school, professional staff who support these teaching activities, as well as some scientists in commerce, industry, and government.
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