Hot Pack Cold Pack Lab

Introduction: In this testing ground there were several purposes. one at a time purpose was to help further the classs lad feeling of thermodynamics. Thermodynamics studies the diversifys in chemical and physical reactions and how energy influences those miscellanys. The purposes of the research laboratory were to decided which of the four given substances would make a gruelling bitter pick out or refrigerant back, to be qualified to jut a hot bevy and cold look at for condition temperature changes, to send the amount of light up released or confined by sensation gram of calcium chloride or ammonium nitrate, and to calculate the percentage error in the experiment. In order to represent the lab one essential also understand energy-absorbing and ignite-releasing reactions. When a self-colored dissolves in water heat is either absorbed or released, which results in either an endothermal or exothermic reaction. An endoergic reaction is defined as the proces s in which energy, as heat, flows from the surrounding into the system. While an exothermic reaction is defined as the process in which energy, as heat, flows out of the system into the surroundings. When an energy-absorbing reaction occurs, heat it taken in fashioning the pack cool down, and in an exothermic reaction occurs heat is released making the pack warm up.

This is able to happen because the energy from the environment (surroundings) is either being absorbed or released to help the gossamer substance to dissolve. One entrust be able to grade if the substance will be a good campaigner for a hot pack or cold pack based on change in temperature. If there is a negative change in temperature than an endothermic reaction ha! s occurred, lowing the temperature of the subject field in the cold pack. past when an exothermic reaction occurs, the temperature change is positive, making it a good candidate for a hot pack. In addition in order to complete this lab several questions had to be use to calculate the amount of heat released/absorbed by one gram and to calculate % error. supposition: If a solution rises in...If you necessity to get a wide essay, order it on our website: OrderEssay.net

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