Is A Hot Pack Endothermic Or Exothermic?
Is A Hot Pack Endothermic Or Exothermic? Heat packs that contain iron and water packets: Exposing the solution to air results in the oxidation of the iron (creates rust). The oxidation of the iron is an exothermic process. Heat packs that contain supersaturated sodium acetate: These are reusable, the packs are boiled to dissolve sodium