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Old 11-26-2005, 01:04 AM
bobman0330 bobman0330 is offline
Join Date: Aug 2004
Posts: 52
Default Re: Physics of carbination

You're right, brother is wrong.

When the cap is on, the dissolved CO2 comes to equilibrium with the CO2 in the air in the bottle. When the cap is off, CO2 is constantly bleeding out. The rate of gas "undissolving" is inversely proportional to the pressure of CO2 above the liquid. With the cap off, P(CO2) will always be lower, so rate is higher, and more CO2 is lost over any time period.
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