| Topic: |
Science > Physics |
| User: |
"Bernhard Kuemel" |
| Date: |
22 Oct 2003 06:40:13 AM |
| Object: |
solid CO2 above critical temperature?? |
Hi sci.physics!
I found phase diagrams where CO2 is solid above the critical
temperature at very high pressures, e.g. 40 oC and 5000 atm. Is
this correct?
http://scifun.chem.wisc.edu/chemweek/CO2/CO2.html
http://www.chem.leeds.ac.uk/People/CMR/whatarescf.html
Bernhard
--
Low end Serverhousing ab 25 e inkl. 1x 11 e/GB, etc.:
http://www.bksys.at
.
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| User: "Prai Jei" |
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| Title: Re: solid CO2 above critical temperature?? |
23 Oct 2003 04:07:52 PM |
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"Bernhard Kuemel" <darsie@gmx.at> wrote in message
news:3f966cc5$1@e-post.inode.at...
Hi sci.physics!
I found phase diagrams where CO2 is solid above the critical
temperature at very high pressures, e.g. 40 oC and 5000 atm. Is
this correct?
Yes, the critical temperature relates to the liquid state. Above this
temperature the solid and vapour phases can still exist in an equilibrium
dependent on the temperature and pressure. It seems that whatever the
substance and the supercritical temperature, apply enough pressure and it
will solidify.
.
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