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Topic: instant compress  (Read 18259 times)

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yamakazi

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instant compress
« on: April 08, 2004, 01:52:43 AM »
hi everybody
i wanted to know how hot or cold compress works and what chemical reactions are used in that.
help me plz  
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Offline gregpawin

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Re:instant compress
« Reply #1 on: April 12, 2004, 03:10:10 AM »
Sorry for the late reply but I've been looking around for the specific reaction with no results.  Gosh my thermodynamics is rusty but this is an endothermic reaction...
dG=dH-TdS... so I'm thinking the entropy term dominates... I wonder if anyone could correct me on that.
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Offline Mitch

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Re:instant compress
« Reply #2 on: April 13, 2004, 02:27:36 PM »
Sandra is the resident expert on the reaction. I'll try to get her to post it again.
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