December 21, 2024, 11:07:46 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: instant compress  (Read 19006 times)

0 Members and 1 Guest are viewing this topic.

yamakazi

  • Guest
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  
Logged

Offline gregpawin

  • Cradle Bandit
  • Chemist
  • Full Member
  • *
  • Posts: 245
  • Mole Snacks: +22/-5
  • Gender: Male
  • Ebichu chu chu chuses you!
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.
Logged
I've got nothin'

Offline Mitch

  • General Chemist
  • Administrator
  • Sr. Member
  • *
  • Posts: 5298
  • Mole Snacks: +376/-3
  • Gender: Male
  • "I bring you peace." -Mr. Burns
    • Chemistry Blog
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.
Logged
Most Common Suggestions I Make on the Forums.
1. Start by writing a balanced chemical equation.
2. Don't confuse thermodynamic stability with chemical reactivity.
3. Forum Supports LaTex
Pages: [1]   Go Up
« previous next »
Sponsored Links