sublimation

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From: Geoff Ruth (gruth@uclink4.berkeley.edu)
Date: Mon Dec 04 2000 - 07:30:26 PST 

Message-Id: <v04011700b65168a38d87@[128.32.190.180]>
Date: Mon, 4 Dec 2000 07:30:26 -0800
From: Geoff Ruth <gruth@uclink4.berkeley.edu>
Subject: sublimation

Why do CO2 and I2 sublimate instead of going through a liquid phase (at
room pressure)? I know that you can make them liquify if you pressurize
them, but why wouldn't they always turn into liquids as the solid form was
heated? I've never heard an explanation of this.

-Geoff
Living by Chemistry
Room 247, Mail code 5200
Lawrence Hall of Science
Berkeley, CA 94720-5200

Leadership High School
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San Francisco, CA 94112

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