the rate at which it burns and how much heat it gives off? Hypothesis: If the burning time and heat temperature relies on the type of wood‚ then oak and maple should burn the longest and give off more heat because they are dense hardwoods. Research: The terms hardwood and softwood refer to the density of wood‚ how hard it is‚ and how much weight it has. A dense hardwood like oak or maple has high energy content per cord‚ so it releases more heat and produces long-lasting embers. Hardwood
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Variable: Heat energy released by the food product. Dependent Variable: Temperature rise of the water. Controlled Variable: Amount of water. RESULTS After measuring the temperature rise‚ the energy released per gram was calculated. The calculations are shown in the table below. Table.1 Energy resealed per gram (J) of food for different trials of various
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be able to determine the specific heat of a reaction by using a calorimeter. A calorimeter is a device used to determine the specific heat of chemical reaction or a physical change. The specific heat a reactions is used to refer to the amount of heat that is lost or gained when one gram of a particular substance increases or decreases by one degree Celsius. When a chemical reaction occurs in an open container most of the energy gained or lost is in the form of heat. Almost no work is done (i.e. nothing
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CHP Laboratory Analysis Introduction Combined Heat and Power system is a technology that produces electricity and thermal energy in the same process. In this way‚ optimum use can be made of the energy available from the fuel. During the electrical power generation‚ heat is lost‚ which is used to increase the internal energy of the fluid‚ water in this case‚ through the exchangers. Hot water is either directly pumped to the end user during the winter season of the year or it is used to
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I. INTRODUCTION Today‚ every country draws its energy needs from a variety of sources. We broadly classified this source as conventional and non conventional. 1.1] CONVENTIONAL SOURCES 1) Fossil fuels‚ 2) Hydroelectric power‚ 3) Nuclear fission‚ 1.2] NON-CONVENTIONAL SOURCES 1) Solar energy‚ 2) Wind energy‚ 3) Bio mass and bio gas‚ 4) Ocean thermal energy‚ 5) Tidal energy‚ 6) Geothermal energy. Energy is the prime mover of economic growth and is vital to the survival of a modern economy
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|decreases|stays the same| D.|decreases|increases| 4. Two bodies are brought into thermal contact with each other. No thermal energy transfer takes place between the bodies. It may be deduced therefore‚ that the bodies must have the same A. specific heat capacity. B. heat capacity. C. temperature. D. internal energy. 5. An ideal gas expands isothermally‚ doing 2500 J of external work in the process. The thermal energy absorbed by the gas in this process is A. zero. B. less than 2500 J. C. equal to 2500
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hydrates in definite‚ stoichiometric proportions‚ and the number of water molecules bound per metal ion is often characteristic of a particular metal ion. Many hydrated salts can be transformed to the anhydrous (without water) compound by application of heat. In this experiment‚ we determine the empirical formula of copper (II) sulfate – CuSO4. II. EXPERIMENTAL In this experiment‚ we used an electronic balance to weight a clean‚ dry crucible before obtaining a sample of copper (II) sulfate (CuSO4)
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the feature of gear is a breakthrough in battery technology‚ not just a gimmicky. Omni-heat transmits from three pockets‚ one for each hand and an internal left chest pocket with hood (Hitchcock‚ 2010). The major part is the smart clothes will keep you warm‚ dry and toasty when winter time is coming. b. Need it satisfies As we know‚ system availability plays an important in real time moment. The Omni-Heat Thermal Electric jacket is nice and lightweight due to the polytechnic fill‚ it does warm
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Abstract The aim of this experiment is to determine the heat of combustion for naphthalene. This is the some basic bomb procedures. In this experiment‚ we us naphthalene as a fuel in bomb calorimeter which naphthalene powder is turned to pellet using pellet press. The fuel is burnt at constant volume condition in a high pressure container (the bomb). The whole bomb‚ pressurized with excess of oxygen. The mass of iron wire‚ ma =0.02g. The mass of naphthalene pellet with iron wire‚ mb =0.38g. The
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Introduction: The easiest way to achieve our aim is by heating a substance with a known specific heat capacity and using the energy released from burning our fuels. This will give us the value of the heat energy released by the combustion of our two fuels. The chemical reaction for combustion: FUEL + O2 Heat energy released CO2 + H2O It is the heat energy released that we are concerned with‚ the amount released in this reaction will provide us with
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