The Enthalpy Change of the Decomposition of Calcium Carbonate _INTRODUCTION_ RESEARCH QUESTION: What is the enthalpy change of the decomposition of calcium carbonate? BACKGROUND: Enthalpy in chemistry can be thought of as the energy contained within the bonds‚ or the internal energy‚ but it is not heat and you can only measure changes in it. When bond bonds break in the reactants energy is given off‚ when bonds form‚ energy is absorbed. If the energy absorbed is less than the energy released
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The Question: Does temperature affect the elasticity of a rubber band? Our Hypothesis: We thought that in hot water that it will be the most elastic. Simply because hot water make things stretchy and moveable like balsa wood. Material: 1. Three Cups 2. Nine rubber bands (should be the same) 3. Cold Water 4. Hot Water 5. Room Temperature Water 6. Two pencils (you will see why later) 7. Four Ice Cubes 8. Water that is sitting in an indoor location 9. Stop Watch 10. Ruler Experimental 1. Take one cup
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Thermal Expansion Thermal expansion is the tendency of matter to change in volume in response to a change in temperature‚ through heat transfer. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically‚ it measures the fractional change in size per degree change in temperature at a constant pressure. Several types of coefficients have been developed: volumetric‚ area‚ and linear. This is used depending on the particular application
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Digital Commons@ Loyola Marymount University and Loyola Law School Mechanical Engineering Faculty Works Mechanical Engineering 1-1-2010 Nanofluid-Based Direct Absorption Solar Collector Todd Otanicar Loyola Marymount University‚ totanicar@lmu.edu P. E. Phelan R. S. Prasher G. Rosengarten R. A. Taylor Repository Citation Otanicar‚ Todd; Phelan‚ P. E.; Prasher‚ R. S.; Rosengarten‚ G.; and Taylor‚ R. A.‚ "Nanofluid-Based Direct Absorption Solar Collector" (2010). Mechanical
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Heat of Neutralization Introduction: The purpose of this experiment was to measure‚ using a calorimeter‚ the energy changes accompanying neutralization reactions. In order to measure the amount of heat produced by a reaction‚ an instrument called a calorimeter was used. The calorimeter used in this experiment was somewhat rudimentary. It was constructed as shown in the following picture: After finding the heat capacity of the calorimeter‚ the student and partner neutralized two acids and
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Global Warming Global warming is the warming of the earth’s atmosphere. For many years humans have been blamed for causing global warming. Global warming‚ however‚ can be caused by natural effects. One reason is that the earth is constantly going through periods of warming and cooling. Second the two most abundant greenhouse gases water vapor‚ and carbon dioxide both occur naturally. Third the earth is not the only planet
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I. Introduction Pressure is the application of force to a surface ‚ and the concentration of that force in a given area . A finger can be pressed against a wall without making any lasting impression ; however ‚ the same finger pushing a Thumbtack can easily damage the wall ‚ even though the force applied is the same ‚ because the point concentrates that force into a smaller area. Volume is the quantity of three-dimensional space occupied
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Experiment 1: Basic Laboratory Techniques Briana S. Golar Laboratory Partners: Dayreal Brown Valerie Marcellus Andrew Thompson January 16‚ 2013 Conclusion Introduction: The intent of the experiment is to sucessfully understand that chemistry is an experimental science which is dependent upon certain observation and the use of good laboratory techniques. The experimenter should become familiar with basic operations necessary
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PHYSICS IGCSE 2012 EXAM REVISION NOTES By Samuel Lees and Adrian Guillot 1. General physics 1.1 length and time 1.2 Speed‚ velocity and acceleration 1.3 Mass and weight 1.4 Density 1.5 Forces a. Effects of forces b. Turning effect c. Conditions for equilibrium d. Centre of mass e. Scalars and vectors 1.6 Energy work power a. Energy b. Energy resources c. Work d. Power 1.7 Pressure 2. Thermal physics 2.1 a. States of matter b. Molecular model c. Evaporation d. Pressure changes 2.2 Thermal properties
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Chemistry Module Six: Thermochemistry and rate Study sheet for the test G.01: Thermo-chemistry I. Temperature and Thermal Energy Temperature is a measure of the average kinetic energy of the particles in a sample of matter. The greater the avg. kinetic energy of the particles in a sample of matter‚ the higher the temperature of that matter. Some temperature scales are Fahrenheit‚ Celsius and Kelvin. Thermal energy is the measure of the total kinetic energy in a sample. And Temperature
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