PP Presentation

Endo- and Exothermic

ENDOTHERMIC

EXOTHERMIC

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Notes:

DEMONSTRATION

example of an ENDOTHERMIC reaction

- hydration of ammonium nitrate

(NH4)+(NO3)- (s) + H2O -> NH4 (aq) + NO3 (aq)

(cools surroundings enough to freeze water)

WHY SPONTANEOUS ?