@mjleyden: Volcanoes ! When you add salt to Diet Coke, it causes the drink to foam over rather than explode, and this has to do with the physics of gas release and nucleation: Here’s what’s happening: 1. Carbonation: Diet Coke is carbonated, meaning it has carbon dioxide (CO₂) gas dissolved in it under pressure. When you open the bottle or can, the pressure drops and CO₂ starts to escape, but much of it stays dissolved unless something triggers it. 2. Nucleation Sites: Salt crystals are rough and have many tiny surfaces and edges. These act as nucleation sites—places where CO₂ bubbles can rapidly form and grow. 3. Rapid Bubble Formation: When salt is added, it disturbs the liquid and provides lots of nucleation sites at once, causing CO₂ to come out of solution quickly in the form of bubbles. 4. Foaming Over: The bubbles rise rapidly, pushing the liquid upward and causing it to foam over the top. However, this is a controlled overflow of foam—not an explosion—because the pressure inside the bottle or can isn’t being increased. You’re just helping the gas escape quickly. Why not an explosion? • There’s no sudden buildup of pressure like in a sealed container. • The bottle is already open when you add the salt. • The reaction is physical, not chemical—unlike something like baking soda and vinegar. So, it’s a fizzy overflow, not a chemical blast. ##fyp##fypage##fypシ##viral##influencer##trending##scienceteacher##scienceexperiments##scienceiscool##teachersoftiktok##Science##scienceismagic##gas##salt##coke##soda##learningisfundamental

Dr. MJ Leyden

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Friday 02 May 2025 22:37:32 GMT