Chemistry How are hot packs examples of exothermic processes? Asked by arwen46 on 24 Jul 05:19 Last updated by anonymous on 26 Jul 02:03
Hot packs often contain a capsule of calcium chloride (CaCl2) surrounded by water. When you break the capsule, the calcium chloride dissolves in the water. Then the temperature of the water (surroundings) increases as heat is released.
