RogueRose
International Hazard
Posts: 1585
Registered: 16-6-2014
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Enthalpy change of solution & tables of energy of enthalpy
This is one of those topics I'm not sure how to word, but what I'm trying to research is how much energy is absorbed/released when dissolved in water
(or another solvent if that works as well).
I came across this Wiki page that gives a few different compounds and was really surprised to find the values of some of these such as comparing KClO3
(+41.38) vs NH4NO3 (+25.69) which means the chlorate needs 61% more heat. You would think this would make a better cold pack but when you see the
solubility of the two, KClO3 is not very soluble in cold water where the nitrate is.
The compounds I'm especially interested in are:
Calcium nitrate
Urea
Ammonium nitrate
Sodium Acetate (anhydrous & trihydrate)
Ammonium chloride
I'm looking for compounds that are highly endothermic or exothermic as well as fairly soluble
I haven't been able to find tables for this, possibly b/c I'm not searching for the correct terms.
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Sulaiman
International Hazard
Posts: 3558
Registered: 8-2-2015
Location: 3rd rock from the sun
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You could start here https://en.wikipedia.org/wiki/Enthalpy_change_of_solution
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