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From: Chris W on 5 May 2010 13:41
suppose I have a sealed container of CO2 at room temperature, where
approximately half of the volume of the container has liquid CO2. Is
the pressure inside this container going to always be equal to the vapor
pressure of CO2 at whatever temperature the container and it's contents
are currently at?

Chris W
From: Androcles on 5 May 2010 13:54

"Chris W" <1qazse4(a)cox.net> wrote in message
news:65iEn.158099$gF5.40733(a)newsfe13.iad...
> suppose I have a sealed container of CO2 at room temperature, where
> approximately half of the volume of the container has liquid CO2. Is the
> pressure inside this container going to always be equal to the vapor
> pressure of CO2 at whatever temperature the container and it's contents
> are currently at?
>
> Chris W
Liquid CO2 ?
http://en.wikipedia.org/wiki/Dry_ice

From: Uncle Al on 5 May 2010 14:37
Chris W wrote:
>
> suppose I have a sealed container of CO2 at room temperature, where
> approximately half of the volume of the container has liquid CO2.

Carbon doxide critical temperature is 31.04�C. If you want a
mensicus, take care it is not an especially warm room, like 88�F or
higher. Don't shove it up yer butt.

> Is
> the pressure inside this container going to always be equal to the vapor
> pressure of CO2 at whatever temperature the container and it's contents
> are currently at?

If CO2 is the only substance in there, the internal pressure (chemical
activity) has no other sources. What does "vapor pressure" mean above
the critical temperature where there is only one phase?

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz4.htm
From: OG on 5 May 2010 14:43

"Androcles" <Headmaster(a)Hogwarts.physics_z> wrote in message
news:KiiEn.7564$BA6.1426(a)newsfe06.ams2...
>
> "Chris W" <1qazse4(a)cox.net> wrote in message
> news:65iEn.158099$gF5.40733(a)newsfe13.iad...
>> suppose I have a sealed container of CO2 at room temperature, where
>> approximately half of the volume of the container has liquid CO2. Is the
>> pressure inside this container going to always be equal to the vapor
>> pressure of CO2 at whatever temperature the container and it's contents
>> are currently at?
>>
>> Chris W
> Liquid CO2 ?
> http://en.wikipedia.org/wiki/Dry_ice
>

Why not?
http://en.wikipedia.org/wiki/File:Carbon_dioxide_pressure-temperature_phase_diagram.svg


From: Uncle Al on 5 May 2010 14:42
Androcles wrote:
>
> "Chris W" <1qazse4(a)cox.net> wrote in message
> news:65iEn.158099$gF5.40733(a)newsfe13.iad...
> > suppose I have a sealed container of CO2 at room temperature, where
> > approximately half of the volume of the container has liquid CO2. Is the
> > pressure inside this container going to always be equal to the vapor
> > pressure of CO2 at whatever temperature the container and it's contents
> > are currently at?
> >
> > Chris W
> Liquid CO2 ?
> http://en.wikipedia.org/wiki/Dry_ice

idiot

<http://www.acri.fr/co2/figure03.gif>
<http://www.teamonslaught.fsnet.co.uk/co2%20phase%20diagram.GIF>
<http://biomodel.uah.es/Jmol/plots/phase-diagrams/pvt_co2.gif>
<http://www2.warwick.ac.uk/fac/sci/eng/cmd/research/civil/supercritical/phase_changes_of_co2.png>

idiot

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz4.htm
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