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? A)Δ H 0, process is exothermic C)Δ H 0, process is endothermic E)Δ H = 0, since cold packs are sealed

Question

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? A)Δ H < 0, process is exothermic B)Δ H > 0, process is exothermic C)Δ H < 0, process is endothermic D)Δ H > 0, process is endothermic E)Δ H = 0, since cold packs are sealed

Quizplus · Accepted Answer

The dissolution of ammonium nitrate in water is an endothermic process, meaning it absorbs heat from the surroundings, which is why the temperature of the solution decreases. This is represented by ΔH > 0.

Cold Packs, Whose Temperatures Are Lowered When Ammonium Nitrate Dissolves