Carbon Dioxide and Solubility
Name: David C.
Despite consulting a variety of sources, I do not yet
have a satisfactory explanation as to why carbon dioxide is more soluble
in cold water than it is in warm water.
Any water soluble gas becomes more soluble as temperature decreases because,
in and of themselves, gas molecules have little affinity for each other --
after all, that is why they are gases. When dissolved in water, CO2 forms weak
bonds with the water molecules. The lower the temperature, the stronger the
bonds, the greater the amount of CO2 that can be dissolved.
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Update: June 2012