Jackson Bellinger “Turning Waste Heat into Power” Physicists at the University of Arizona have discovered a way to convert waste heat back into useable electricity‚ using molecular thermoelectricity. In addition to making many machines much more efficient‚ molecular thermoelectricity would make CFC’s not needed. This new technology makes it possible to convert heat into energy with no moving parts‚ and no pollution whatsoever. Charles Stafford‚ the associate professor of physics at the University
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FORMAL REPORT ON HEAT CAPACITY RATIOS OF GASES ABSTRACT This report discusses an investigation of the heat capacities of Helium‚ Nitrogen‚ and Carbon Dioxide. To accurately determine experimental values for the heat capacity of each gas‚ the heat capacity ratio was calculated from measurements of the speed of sound in each gas. An apparatus designed to measure the wavelength and frequency of sound waves in each gas was used to determine the speed of sound as a frequency was passed through each
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Objectives: (1) Determine the integral heat of solution for finite amounts of KNO3 dissolved in water. Extrapolate the measurement to infinite dilution to obtain the differential heat of dilution. (2) Incorporate the concepts learned in your Electronics laboratory to amplify and accurately measure temperature changes associated with solution formation. (3) Use the A/D capabilities of a computer to record voltage as a function of time (e.g. a strip chart recorder). Pre-lab assignment and questions: (1) Thoroughly
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Title: Specific Heat Capacities of Metals Experiment Date: 3/28/2012 Report Date: 4/4/2012 Purpose: The purpose of the lab is to measure the specific heat capacities of aluminum‚ steel and brass. Theory: The amount of heat (ΔQ) required to change the temperature of an object is proportional to the mass (m) of the object and the temperature change (ΔT) of the object. ΔQ= cmΔT where c is called as the specific heat capacity of the material. In the calorie units system the unit of quantity
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Experiment 1 The Heat Capacity Ratio of Gases Purpose The purpose of this experiment is to calculate the heat capacity ratio of gases‚ Helium‚ Nitrogen and Carbon Dioxide‚ and compare with their theoretical values. Introduction Thermodynamics is the study of heat as it relates to energy and work. There are various properties which all relate to each other when determining the characteristic of a certain substance. One of such properties is heat capacity‚ which is the amount of heat energy required
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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Calorimetry To determine the specific heat of a metal and its approximate atomic mass. To determine the heat of neutralization for a strong acid-strong base reaction. To determine the quantity and direction of heat flow for the dissolution of salt. Post Lab Questions and Answers: 1. In parts A and B in‚ the calorimeter‚ although a good insulator‚ absorbs some heat when the system is above room temperature. Is the reported value for the specific heat of the metal too high or too low? Explain
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indicated by a very pale pink color. To calculate the molarity of NaOH‚ the following equation was used MNaOH x VNaOH = MKHP x VKHP therefore the molarity was .125 M. INTRODUCTION This lab experiment covers the preparation of standard solution and the acid/base titration. The first part of the lab is to prepare a standard solution of Potassium hydrogen per. A standard solution is a solution of known concentration‚ in which it is prepared using exacting techniques to make sure that the molarity
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‘Explain how Jason van Genderen represents the concept of belonging in his short film ‘Mankind Is No Island’ Belonging is an abstract and dynamic concept which can be defined as that which belongs to one‚ that which pertains to one or that which is connected with a principle or greater thing. Jason van Genderen’s short film ‘Mankind Is No Island’ (2008) was shot entirely on a Nokia phone on the streets of the New York and Sydney. Van Genderen represents the notion of belonging/not belonging through
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Factors Affecting Enzyme Action ------------------------------------------------- Term 1 Biology Nicole Goosen Table of Contents Introduction: 3 Materials: 3 Method: 4 Risk assignment: 4 Risk: 4 Personal Protective Equipment: 4 Results: 5 Discussion: 5 Conclusion: 6 Introduction: How is the human body able to digest the food that you eat? How quickly your body digests your food? This is because the human body contains enzymes that are the biological substance‚ a.k.a proteins
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