Exothermic reaction

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  • Exothermic Reaction Lab

    Energy profile of exothermic reaction Energy profile of endothermic reaction A)Doc Brown (2016) B)Doc Brown (2016) Thermodynamic reactions occur when there is a difference of energy during a chemical reaction. There are two types; Firstly, Exothermic reactions; This is when the initial reactants use less energy to break their existing bonds, than what energy was required to make the new bonds. The extra heat is spreads out into the surroundings (see above diagram A) An experiment was carried out using copper (II) sulphate and magnesium powder. Mg + CuSO4  MgSO4 + Cu The temperature of the copper (II) sulphate at the start of the experiment was 18°c, magnesium powder was stirred into the solution. It was found that…

    Words: 1925 - Pages: 8
  • Exothermic Reaction Lab Report

    experiment is to show the student how the amount of energy in a substance can change via endothermic reactions and, in this experiment, exothermic reactions. This experiment hopes to show the student a simple exothermic reaction that will serve as a building block for all future exothermic reaction. So what exactly is an exothermic reaction? Well, many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions (Helmenstine). An exothermic reaction…

    Words: 896 - Pages: 4
  • Specific Heat Lab Report Essay

    This reaction was an exothermic process as it yielded a heat change of ∆H= -1316.700J. The final reading of the thermometer displayed an increase of temperature from its initial temperature which is an indication of heat being released as in an exothermic process. The molar enthalpy change was calculated to be -65.835Kj/mole while the theoretical calculation is -55.800Kj/mole. The information yielded a percent error of 17.984% which can be explained by a possible inaccurate reading of the…

    Words: 797 - Pages: 4
  • Chemical Runaways

    It was noted that the system malfunctioned during the procedure. The CSB notes that the failure could have been a valve failure or blockage in the water piping used to cool the vessel. Since vessel could not be cooled, the pressure inside the vessel began to rise and chemical runaway began to occur. Chemical runaway is the process that exothermic reactions get out of control and cause an explosion (Institute of Chemical Engineers, n.d.). During the evacuation process, the pressure became too…

    Words: 879 - Pages: 4
  • Heat Dissolving Lab Report

    How the changing mass of solute effects the heat given out when dissolved in water Aim To investigate how the changing mass of a solute will affect the energy given out. Introduction Dissolving is when a solute is mixed into a solvent to form a solution. Dissolving can be either endothermic or exothermic. Endothermic reactions happen when the energy given out when bonds are broken, is greater than the energy given out when bonds are made. As more energy is used and taken in, the surroundings…

    Words: 1353 - Pages: 6
  • Endothetermic Or Exothermic?

    Endothermic or Exothermic? The energy changes lab was an interesting lab in which the class compared two chemical reactions, the solute baking soda and the solvent vinegar, and the solvent baking soda solution with the solute of calcium chloride to see whether the changes were endothermic or exothermic reactions. I concluded that vinegar and baking soda was the endothermic reaction and baking soda solution and calcium chloride was the exothermic reaction. I knew this because in the vinegar and…

    Words: 253 - Pages: 2
  • Rate Of Reaction Between Magnesium And Hydrochloric Acid

    conclude that the reaction with the fastest reaction rate is magnesium and hydrochloric acid. Initially, it was hypothesized that the reaction with hydrochloric acid would have the fastest reaction rate due to its high acidity observed from the pH scale. From there, the following reactions were based on the pH of the acid involved as well as the concentration of hydrogen ions/atoms within the acid molecule. As a result, it was hypothesized that the sulfuric acid reaction would be the second…

    Words: 614 - Pages: 3
  • Narrative Essay About Being Afghanistan

    who were out on convoys or patrolling. I remember the day clearly when my Sargent died. There had been a patrol out doing a routine sweep of our area and he stepped on an IED, which basically turned him into pink mist. There was no body to recover. I remember standing at the left corner security post when the blast went off. The blast was large enough to kill him and open cause minor injuries to the other men around him. There was this sense of panic since there was nothing I could do but watch…

    Words: 1997 - Pages: 8
  • Explain What Happened When I Poured Vinegar And Baking Soda Experiment

    I performed the vinegar and baking soda experiment. The first thing that happened when I poured vinegar on top of the baking soda was an overflow of fizz and bubbles. These bubbles were the carbon dioxide escaping from the solution. White foam overflowed over the rim of the container. I felt the cup dropping temperature slightly as the reaction took place. The temperature dropped about 6 degrees Celsius. The remaining solution was a filmy and diluted. The result was sodium acetate dissolved in…

    Words: 290 - Pages: 2
  • Cold Pack Lab

    found it to be a chemical reaction An exothermic reaction is when the substance releases heat energy. An endothermic reaction is when the substance absorbs heat energy. In our experiment we created a cold pack. We indicated that the reaction for this experiment would be exothermic. We think this because exothermic is releasing the heat which would make it cold. In our lab our guiding question was, which of the following substances would make an…

    Words: 442 - Pages: 2
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