Experiment 22 - Hot packs and cold packs are primarily used...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Hot packs and cold packs are primarily used to treat injuries. In these packs, there are either endothermic processes or exothermic processes that occur which make the packs either cold or hot. Endothermic processes entail heat being absorbed while exothermic processes entail giving off heat to reduce pain and increase blood flow. The enthalpy of solution is the enthalpy change associated with the dissolution of a substance, in this case a salt, in a solvent at constant pressure. The composition of hot or cold packs consist of water and salt. Thus, the enthalpy changes of dissolution will determine whether a particular salt is appropriate as a hot or cold pack ingredient. Our job is to find which salt (ammonium nitrate, calcium chloride, lithium chloride, and potassium chloride) would be the most effective for producing either hot packs or cold packs. To do this, our team is using Experiment 19: Thermal Energy Associated with Physical and Chemical Changes to
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern