Question #a5319

1 Answer
Apr 20, 2014

Quicklime reacts with water in an exothermic reaction. The product is slaked lime (calcium hydroxide).


The equation for the reaction is

CaO(s) + H₂O(l) ⇌ Ca(OH)₂(aq); #ΔH_(rxn)# = −63.7 kJ/mol

The large amount of heat produced causes local boiling as the particles react. The steam bubbles are the water vapour that forms.