[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: CO2 and anabantoids
I found this discussion very interesting. I'm not a physicist either and I
hope some physicist will step in and enlighten us all. But after reading
some of the arguments, I went back to a physics text book (actually, the
Feynman lectures) and did some digging. I think, if I interpreted what I
read correctly, there would not be distinct layers of CO2 and air in the
closed container due to the difference in molecular weights. What happens
is that there will be a gradient, more of the heavier gas at the bottom,
more of the lighter gas at the top. The slope of this gradient depends on
the temperature.
My personal belief is that at room temperature, and especially at the
elevated temperature found at the top of the tank (due to the lights), this
gradient is very small, i.e., the gases will pretty much mix
uniformly. And if there is any leak at all in the seal, the CO2 will
readily escape.
Hoa
___________________________________________________________________________
Hoa G. Nguyen
Freshwater Planted Aquarium: http://www.geocities.com/Heartland/Hills/2637/