| Chemistry Lab Report | Constructing Heating/Cooling Curve | | Salman Ishaq 12-E | 1/27/2013 | | BACKGROUND As energy flows from a liquid‚ its temperature drops. The entropy‚ or random ordering of its particles‚ also decreases until a specific ordering of the particles results in a phase change to a solid. If energy is being released or absorbed by a substance remaining at the same temperature‚ this is evidence that a dramatic change in entropy‚ such as a phase change‚ is occurring. Because
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Background Research Gelatine is a clear‚ colorless‚ brittle (when dry)‚ flavourless solid substance‚ derived from the collagen inside the skin and bones of animals. Substances containing gelatine or functioning in a similar way are called gelatinous. gelatine is an irreversibly hydrolysed form of collagen. It is found in some gummy candies as well as other products such as marshmallows‚ gelatine dessert‚ and some low-fat yogurt. Household gelatine comes in the form of sheets‚ granules‚ or powder
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NS 10.5 (pg 1 of 2) Heating and Cooling Curves What happens when we heat a sample of ice that is initially at -15°C? The addition of heat causes the temperature of the ice to increase. As long as the temperature is below 0°C‚ the sample remains frozen. When the temperature reaches 0°C (the melting point of water)‚ the ice begins to melt. Because melting is an endothermic process‚ the heat we add at 0°C is used to convert ice to water and the temperature remains constant until all the ice
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Heating Curve Project There are two parts to the project. EVERYONE MUST COMPLETE PART ONE. We can put our personal touch on part two. 1. Label heating curve graph of a substance other than water (NOT WATER‚ make up a substance if you have to‚ but don’t use 0 oC and 100 oC The graph must include: • An illustration (not fancy) of how the molecules are arranged in the solid phase‚ liquid phase‚ gas phase and during the phase changes. • How KE and PE change during different parts of the graph. •
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x Biology 11 Ms. Zwart 06.09.13 The Cooling Curve of Water Variables: Independent Variable: The independent variable is heat; we measure the temperature with a thermometer‚ which has a systematic error of ± 0.5 °C. Dependent Variable: The dependent variable is time; we know when 30seconds pass with the use of a stopwatch‚ which has a systematic error of ± 1 second. Controlled Variables: The controlled variables used in this experiment are; a 400ml beaker with the systematic error
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i Free Convection Cooling Variation in Terms of Position By Joseph Saba Rula Dahdal Wassim Naddi Submitted to Dr. Michel Daaboul A research paper submitted in partial fulfillment of the requirements of the course MECH 321 Heat Transfer Faculty of Engineering University of Balamand June 2012 Copyright © 2012‚ Joseph Saba‚ Rula Dahdal‚ Wassim Naddi All Rights Reserved ii ABSTRACT This research paper aims is to introduce a brief positioning on how we can enhance the
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gPotential of District Cooling in India Submitted by Jyothish Jacob P121031‚ PGPM (Energy) GLIM Abstract DCS is a highly energy efficient system that provides air conditioning in various zones of the city. DCS cools multiple users through underground piping network applying environmentally friendly energy sources like central chilling plant. Over the past decade‚ India’s economy has seen unprecedented growth‚ which has given rise to an increase in energy demand and greenhouse gas (GHG) emissions
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A BASIC STUDY ON SIMULTANEOUS HEATING WITH MICROWAVES AND ULTRASOUND USING COAXIAL‚ TYPE APPLICATOR Abstract- A new heating method for hyperthermia using microwave and ultrasound simultaneously is proposed‚ and temperature distributions are obtained by computer simulations. The results have shown that the simultaneous use of microwave and ultrasound can heat wider and deeper region than the sole use‚ and can reduce the input power of microwave and ultrasound. This implies that we can reduce
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THE COOLING PUMPS AND COOLING SYSTEMS DEFINITION OF TERMS Cooling System - equipment in a motor vehicle that cools the engine. Water Cooling is a method of heat removal from components and industrial equipment. As opposed to air cooling‚ water is used as the heat conductor. Water cooling is commonly used for cooling automobile internal combustion engines and large industrial facilities such as steam electric power plants‚ hydroelectric generators‚ petroleum refineries and chemical plants
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The purpose of this differential heating lab is to see which of the given materials would heat up faster or remain the same when heated by our heat lamp. in previous years‚ when this lab has been conducted for the most part‚ results were the same as our results. Our background knowledge consisted of knowing about which of the given materials were more flammable. Hypothesis: if differential heating occurs‚ then different materials will heat at different rates. I would assume that the leaves
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