Medical Hot and Cold Packs Experiment

After finding the calorimeter constant, proceed to the second half of the experiment and measure each of the four salts of the calorimeter to determine whether the salt is used for hot or cold packaging. Our goal is to first determine q_dissolution and then find the heat of dissolution. Dissolution is an exothermic reaction and indicates that salt will enter the thermal package. The resolution of ΔH is endothermic, which indicates that salt enters the ice pack.

The best thing I found was a product called "Pretty Cool Hot Flash Relief Instant Cold Pack" which is basically a small ice rapper when you "open" its individual wrapper and "activate" it. The icing ability is released. The package size is equivalent to Big Mac, Peach Color, and is decorated with a complex Mandala design. According to product information, if I feel this crazy feeling "can be carefully put in a bra" can. In addition to the fact that we should quietly suppress these hot flashes, I am still confused. It sounds impossible, but it is also very interesting as I think seriously trying it.

3 In extensive experimental research it is necessary to design and manufacture packages that produce high and low temperatures during operation. The team tried to manufacture an instant cold pack for the experiment. Instant cold packs do not require refrigeration, can be stored for several months, and can generate low temperatures anywhere at any time. They are fast and easy to use, and consist of two or three compartments separated by fragile barriers. The compartment contains various chemical substances that combine to cause endothermic reaction when the separator breaks. Instant ice packs usually consist of ammonium nitrate and water, but four reactions can not be undone and can only be used once. They play a critical role in the initial steps of treatment for sprains, tensions, muscle tension and other such injuries.