**Example:** If I leave an opened carbonated drink out on the counter over night it will have gone flat by morning, but if I keep the same opened drink in the fridge over night it’s still holding the carbonation the next day
In: 4
Easy, it’s all about solubility. Most things are more soluble when the liquid is hotter, however the opposite is true for carbonates and carbon dioxide. CO2 is simply less soluble in warm soda. So it escapes faster.
[CO2 stays in cold water better than warm water](https://en.wikipedia.org/wiki/Carbon_dioxide_%28data_page%29#Solubility_in_water_at_various_temperatures). Notice how lower temperatures have higher grams. Unlike salts or other solids, gasses tend to dissolve better in cold liquids. This is because the default reaction for a gas is (usually) to return to being a gas as opposed to salt’s default reaction being to dissolve, and the higher heat makes the default reaction happen easier.
CO2 is less soluble in water as temperature increases. The ELI5 explanation of why is that, when the solution is of a higher temperature, it’s more likely for any individual CO2 atom to have enough energy to break the interactions it forms in water and escape the solution.
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