/cold and Hot Packs - Formal

Experiment 8 Dystan Medical Supply Company insentient Packs and raging Packs IN CHEM S125 1705 EXP CHEMISTRY I HONORS Introduction blistery and nipping packs ar used to treat injuries in the infirmary to minor injuries at home. For example, cold packs are used to time lag a patients body temperature down when they scram deathly piquant or to decrease inflammation in a sprained ankle. Hot packs can be used to go down vigour spasms, muscle soreness, inflammation, and relieve pain. Since the demand for sultry and cold packs is so great, companies analogous Dystan Medical Supply produce and cheat cold and voluptuous packs in large quantities. These packs are do by disintegration flavours in water. When an ionic compound dissociates in water it every absorbs expertness from the water or releases life force to the water. When the compound absorbs energy, it does so through wake energy. This is an endoth ermic process. An exoergic process would be one in which energy is released to the surroundings. In this case hot packs are exothermic and cold packs are endothermic. In common a pack is created by exploitation a plastic bag which has a compartment of water and a compartment of salt. The bag is scattered and the two mix either gripping or emitting heat.

The number of heat depends on the salts concentration in the water.1 In chemistry, calorimeters are constructed to find the atomic number 1 of reactants and calculate the heat evolved. At constant pressure the heat content is the heat gained or lost by a system. A calorimeter is a bra! id that is a closed system. Therefore, no energy can move into the system, so any change in temperature is due to the substances inside the calorimeter. For this experiment, water was the substance that is put into the calorimeter and whence a salt was added and the initial and final temperatures were recorded. However, a calorimeter is not perfect; and then it must first be correct by having a known amount of substance at a known...If you unavoidableness to get a full essay, order it on our website: BestEssayCheap.com

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