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  • 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 become colder. Dissolving is exothermic when energy is given out to its surroundings. In an exothermic reaction bonds are being made. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to get warmer. Exothermic…

    Words: 1353 - Pages: 6
  • Thermochemistry: Endothermic And Enthalpy

    The term Thermochemistry refers to when heat is evolved or absorbed during a chemical reaction. When calculating the amount of energy, the number will always be expressed as a positive number. A negative sign will indicate whether the energy is evolved or absorbed. If the sign is negative, then the energy is evolved and if the sign is positive, then the energy is absorbed. The amount of heat that is released or absorbed will also be in units of Joules or Kilojoules per mol. There are two other…

    Words: 1355 - Pages: 5
  • Enzymes And Endothermic Reaction

    and temperature. A sufficiently rigid enzyme molecule can perform its task without getting denatured at high temperature and hence do not need any further efforts for stabilization. Enzyme always needs a fixed level of flexibility to function and rigidity to be stable under environmental conditions. Need for temperature stability The advantages of using high temperature in the reactions are: • Higher process rates (if reaction temperature increase from 25 to 75ºC, the process rate…

    Words: 3842 - Pages: 16
  • Difference Between Temperature And Endothermic Metabolic Rate

    Temperature is one of the most important factors that affect an organism’s metabolic rates. In ectothermic organisms, their metabolic rate depends on the external environmental conditions. If temperature increases, so will their metabolic rates. Endothermic organisms do not depend on external conditions but rather can produce and maintain the generated heat within their systems to maintain their bodies at a constant temperature. If temperatures increase or decrease above or below the desired…

    Words: 796 - Pages: 4
  • Kinetic Energy And Potential Energy Essay

    cooling graph representing an exothermic or endothermic process. Kinetic energy is the energy of a system that is in motion of the particles in the system. Potential energy is the energy of a system in which it represents the arrangement of the particles of the system. Kinetic energy and potential energy never increase or decrease at the same time, however, when one energy is changing the other remains constant. During a phase change, the potential energy either increases or decreases while the…

    Words: 661 - Pages: 3
  • 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
  • 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
  • Spearmint Vs Mint Research Paper

    and damp areas. They are vulnerable to many bugs when the plants are young. “Ice Breaker Frost” sugar free mints from the Hershey company are the only mints with an intense combination of xylitol, cooling and flavor crystals”says, "http://businesswire.com. Many mints are made of sorbitol, food coloring, aspartame, maltodextrin, cotton seed oil and flavorings. Ice Breaker Frost mints are made of xylitol which is a sugar alcohol and it’s formula is C5H1205. When xylitol dissolves, it has an…

    Words: 371 - Pages: 2
  • Heat And Calorimetry Lab Report

    The particles in the NaCl solutions differ from its constitute parent solutions. The different particles in the solution have different kinetic, vibrational, and rotational energies which effect heat capacity. Therefore, the strong acid/base solutions and NaCl cannot to related in this way. Dissolving ammonium chloride is endothermic due to the fact that dissolving ammonium chloride involves breaking bonds and converting the substance into its constitute ions . The process of breaking bonds…

    Words: 1013 - Pages: 5
  • Essay On Hypothermia

    and mammals. Birds conserve water by excreting nitrogenous waste as salts of uric acid. Mammals use the loop of Henle in the kidney, this lets them produce urine that has a high concentration of urea and salt. Sauropsids and synapsids both started to evolve endothermic behaviors. High metabolic rates are essential for animals that need to walk long distances for a long period of time, and also it is essential for animals that need to thermoregulate. This is how endothermy evolved into the…

    Words: 1473 - Pages: 6
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