Many cold packs contain ammonium nitrate and water. The dissolving of ammonium nitrate is endothermic. Which of the following best describes the energy and entropy changes that occur for the NH₄NO₃ system when ammonium nitrate and water are mixed to make a solution?

Question

Quizplus · Accepted Answer

The dissolving of ammonium nitrate in water is endothermic, meaning it absorbs energy from the surroundings, leading to a net energy increase. The process also results in an increase in entropy as the solid ammonium nitrate disperses in the water, creating a more disordered system.

Many Cold Packs Contain Ammonium Nitrate and Water