December 21, 2024, 10:56:19 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: How to tell whether a reaction is endothermic or exothermic  (Read 2345 times)

0 Members and 1 Guest are viewing this topic.

Offline big

  • Regular Member
  • ***
  • Posts: 79
  • Mole Snacks: +1/-0
How to tell whether a reaction is endothermic or exothermic
« on: January 16, 2011, 11:32:43 AM »
If you mix NH4Cl(s) and H2O(l), it's apparently endothermic, but why, and how do you know if the enthalpy of reaction isn't given? I'm assuming it has something to do with the dissocation enthalpy and the enthalpy of hydration, but in general, how do you know if you're just given some ionic solid that you have to dissolve in water?
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links