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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Abstract This lab is performed in order to determine the total energy in a reaction between zinc and hydrochloric acid. The reaction is done twice‚ once to measure the heat of the reaction and again to determine the work done in the system. This is because Enthalpy equals heat plus work (∆H= ∆E+W). Heat and work can be broken down further into separate components so the equation used in lab is ∆H=mc∆T + PV. Many calculations are used in the lab to find out what cannot be measured directly (ex:
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production works by the radioactive decay f several types of rocks containing radioactive substances (such as uranium) releasing heat energy. In the volcanic areas in Iceland‚ the rocks heat the water so that it then rises to the surface (naturally) as hot water and steam. The steam can then be used to drive turbines and electricity generators‚ thus creating the energy used to heat homes & greenhouses‚ and other reasons such as fish farming and other electricity in general. By using geothermal energy‚
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taken as 4.18 kJ/kg.K. Problem 4: A 0.0283 m3 container is filled with air at 1.365 bar and 37.77oC. Calculate the final pressure in the container if 10544.82 J of heat are added. Assume ideal gas behaviour‚ with constant specific heats. Problem 5: Nitrogen is to be heated at constant pressure from 310.77 K to 1921.88 K. Calculate the heat transfer per mole. C p 39.65 8071 1.5 106 kJ for N 2 T T 2 kg.K Problem 6: Air is contained in a piston-cylinder arrangement with a cross
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advertised caloric value using percent error. Introduction The amount of heat needed to increase the temperature of an object exactly 1°C is the heat capacity of that object. The specific heat capacity of a substance is then the amount of heat it takes to raise the temperature of 1g of the substance1°C. Caliometry is the precise measurement of the heat flow into or out of a system for chemical and physical processes. Heat flow is measured in two common units‚ the calorie and the Joule. 1 calorie=
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