Idea created from sparkling water
In: Physics
The bubbles are carbon dioxide. When the bottle is closed there’s enough pressure that the carbon dioxide stays dissolved in the water, like sugar dissolved in hot tea, so you can’t see it.
When you open the bottle you release the pressure. The amount of carbon dioxide (or any gas) that will dissolve in water scales with pressure, so when you drop the pressure the water can’t hold as much carbon dioxide. The excess drops out of solution and forms bubbles, like when you cool sugar syrup and sugar crystals show up.
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