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Re: [APD] CO2 Experiment #2
Jerry Baker wrote:
> Stuart Halliday wrote:
>> P.S.
>> Surely as they get smaller their surface area to volume ratio decreases?
>
> A 10mm bubble has a volume of 523.6mm^3, and a surface area of 314.15
> mm^2 - a volume to surface area ratio of 1.667. A 5mm bubble has a
> volume of 65.45mm^3 and a surface area of 78.54mm^2 - a volume to
> surface area ratio of 0.833. So, in other words, as the bubble gets
> smaller each cubic millimeter of gas is exposed to a greater surface
> area of water.
Good Maths.
Ok, but I wonder why my bubbles appears to slow down shrinking when going up
the ladder?
--
Stuart Halliday
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