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carbon monoxide alarm
"z" wrote in message ups.com... On Feb 10, 8:42 am, (Doug Miller) wrote: Oxygen is 14% heavier than nitrogen (16 vs 14). And when you consider that the molecular weight of CO is virtually the same as that of N2 -- but significantly *less* than that of O2 -- it makes quite a difference. But the oxygen and nitrogen don't separate out of the air, so why would the CO? The "mix" of gasses in the air is driven by diffusion and by the density. In the "steady state" diffusion trumps density although one would expect that "lighter" gasses would tend to make it to the higher levels of the atmosphere more easily than heavy stuff. But when you have a process that is producing a LOT of a particular gas, in the short term the density of the gas can be important. The grade school "science" shows CO2 going "downhill" to snuff out a candle. |
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