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i guess if it's in the fridge you reduce the air pressure so more of the CO₂ can migrate from the water into the air in the bottle the reason it goes flat generally is that carbonated water is like a chemical equilibrium between the dissolved CO₂ in the water and the gaseous CO₂ in the air in the rest of the bottle and the pneumatic pressure of the air keeps it in the water. as soon as you reduce the pressure by opening the bottle you shift the equilibrium point so more of the CO₂ wants to migrate into the air. shaking the bottle up simply speeds up the process of reestablishing equilibrium. but relevant to the fridge aspect of all of this, if you reduce the temperature the pressure of air goes down much more than the pressure of water so that will also hasten the soda going flat but i don't know if that would be by a really noticable margin, i haven't done the math because i'm not a nerd
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Jan 18, 2022 15:20
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| # ¿ May 21, 2024 03:26 |
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