[TheForge] Argon-CO2 mix question

[James Binnion]

Cool gasses are more dense and are pulled down by gravity, there is  
no similar force to "pull up" on warmer gases. The cooler gas  
displaces the warmer as it sinks giving the appearance of warm gas  
rising.

Jim

On Jun 6, 2007, at 4:58 PM, Peter Fels And Phoebe Palmer wrote:

> James; i don't understand ( not unusual).
> Wouldn't hot gases in a cool gas medium tend to rise?
> And wouldn't cooler gases in hotter gas surroundings tend to sink?
> This assumes the influence of gravity.
> ...pf
> James Binnion wrote:
>> On Jun 5, 2007, at 2:23 PM, <craig.schaefer at verizon.net>  
>> <craig.schaefer at verizon.net> wrote:
>>> Except that heavier than air gases will go to the floor and  
>>> lighter than air gasses will rise to the ceiling.  Hotter gasses  
>>> rise in cooler gasses.  They don't all expand to fill a space  
>>> evenly.
>> They do if the temperature is at equilibrium. BTW hot gasses don't  
>> rise, cooler gasses sink a subtle but significant difference );-)
>> James Binnion
>> jbin at well.com
>> _______________________________________________
>> Manage membership or unsubscribe at:
>> http://mailman.qth.net/mailman/listinfo/theforge
>> theforge mail list group photo site is
>> http://www.photoaccess.com
>> Login:  blacksmithblacksmith at hotmail.com
>> password:  anvil
>> ___________
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>

James Binnion
jbin at well.com