Homework Help: Chemistry

Posted by Anonymous on Saturday, September 18, 2010 at 10:39pm.

When a chemical cold pack is activated, a chemical reaction occurs that causes the pack to feel cold.

- Describe the transfer of energy betwen a cold pack and the air around it.

Chemistry - DrBob222, Sunday, September 19, 2010 at 12:17am
The cold pack gets colder; the air around it gets warmer.
Chemistry - Anonymous, Thursday, December 29, 2011 at 4:40pm
The cold pack gets colder the air around it gets warmer
Chemistry - Taylore, Tuesday, January 22, 2013 at 1:58pm
The reaction is endothermic. Endothermic reactions always feel cold, and heat is being absorbed by the back from the surrounding environment.
Chemistry - Taylore, Tuesday, January 22, 2013 at 1:59pm
*pack

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