Uploaded March 2023 | Updated September 2026, 2 weeks ago

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In this video, we explore the fascinating phenomenon of Joule-Thomson cooling that occurs when baking soda and vinegar react to produce carbon dioxide. Joule-Thomson cooling is a process in which a gas cools as it expands against a pressure difference. When baking soda and vinegar react, they release carbon dioxide gas, which expands rapidly and cools down. This reaction can be used to demonstrate the principles of thermodynamics and the Joule-Thomson effect in a simple and fun way.

We will begin by showing you the materials needed to conduct this experiment, including baking soda, vinegar, a plastic bottle, and a temporal scanner. Then, we will walk you through the step-by-step process of mixing the baking soda and vinegar producing carbon dioxide gas. The expansion of the gas causes the temperature to drop!

This video is perfect for science enthusiasts, students, and anyone curious about the fascinating world of thermodynamics. So sit back, relax, and join us on this cool scientific journey!

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Lab video by Noel Pauller
Music courtesy of Lofi Records: Through the Wormhole by Purrple Cat

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