Cold packs, whose temperatures are lowered when ammonium nitrate dissolves in water, are carried by athletic trainers when transporting ice is not possible. Which of the following is true of this reaction?Group of answer choicesΔH = 0, since cold packs are sealedΔH > 0, process is endothermicΔH > 0, process is exothermicΔH < 0, process is exothermicΔH < 0, process is endothermic
