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    this lab‚ I calculated the heat of combustion of paraffin (candle wax) by burning a candle and holding a calorimeter (a soda can) filled with 98.7 mL of water above the flame. The heat released by the candle was absorbed by the water in the can. It was important to place the metal chimney around the candle so that minimal amounts of heat would escape; having too much heat lost to the atmosphere would cause extra error in the calculations. The assumption made was that all heat released from the candle

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    Combustion of a Candle Lab

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    handout & pen ruler watch glass 400 mL beaker CO2 indicator solution (limewater) 50 mL beaker (for indicator) Procedure My lab partner and I performed a series of experiments to investigate the chemistry of the burning of a candle. The teacher provided the following chemical equation to describe the burning‚ or combustion‚ in the candle: Hydrocarbon fuel + O2  CO2 + H2O The candle we used was a small‚ white emergency candle about 3.5 cm tall. The candle had already been used by someone

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    Unit 1 Assignment: Critical Terms Study Guide FS101: Fire Behavior and Combustion Unit 1 Unit 1 Assignment: Critical Terms Study Guide Auto-ignition temperature The minimum temperature to which a material must be raised before combustion will occur. Also called “ignition temperature.” Backdraft A sudden‚ violent reignition of the contents of a closed container fire that has consumed the oxygen within the space when a new source of oxygen is introduced. The introduction of

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    Mass Changes in Heat Combustion of an Alcohol Planning Introduction ============ As alcohol burns in air it gives out energy as heat and light. I am going to investigate how the energy output of an alcohol in combustion changes‚ with increased relative molecular mass‚ or RMM. RMM is the sum of the atomic masses of every atom in the molecule. Using the alcohols: Methanol‚ Ethanol‚ Propan-1-ol‚ Butan-1-ol and Pentan-1-ol‚ I will plan‚ and complete an experiment that tests the

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    FUELS & COMBUSTION CALCULATIONS Unit 5 Prabir Basu TYPES OF FUELS  FOSSIL FUELS Solid fuels (COAL) Liquid fuels (OIL) Gaseous fuels (NATURAL GAS)    NUCLEAR FUELS RENEWABLE FUELS (BIOMASS) WASTE FUELS (MUNICIPAL WASTES) SOLID FUELS PROPERTIES     HEATING VALUE ULTIMATE ANALYSIS PROXIMATE ANALYSIS ASH DEFORMATION POINTS Initial deformation temp. Softening temp. Hemispherical temp Fluid temp. LIQUID FUELS PROPERTIES        HEATING VALUE

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    Heat

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    physics and chemistry‚ heat is energy transferred from one body to another by thermal interactions. The transfer of energy can occur in a variety of ways‚ among them conduction‚radiation‚ and convection. The SI unit of heat is the joule. Heat can be measured by calorimeter‚ or determined indirectly by calculations based on other quantities‚ relying for instance on the first law of thermodynamics. In calorimeter‚ the concepts of latent heat and of sensible heat are used. Latent heat produces changes of

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    Spontaneous human combustion

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    THE MICROSCOPE • Vol. 60:2‚ pp 63–72 (2012) C R I T I C A L FOCUS Brian J. Ford Solving the Mystery of Spontaneous Human Combustion L human combustion (SHC) ast November‚ a 42has been well docuyear-old man was In a matter of minutes‚ people have mented‚ and television has standing outside a record sought to demonstrate an store in Sweden‚ appar- burst into flames and were completely answer. But in the scienently waiting for someone. destroyed. All that remained was a heap

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    Internal Combustion Engines

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    Internal Combustion Engines Introduction Internal Combustion Engine‚ a heat engine in which the fuel is burned ( that is‚ united with oxygen ) within the confining space of the engine itself. This burning process releases large amounts of energy‚ which are transformed into work through the mechanism of the engine. This type of engine different from the steam engine‚ which process with an external combustion engine that fuel burned apart from the engine. The principal types of internal combustion

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    Internal Combustion Engines An internal-combustion engine is a heat engine that burns fuel and air inside a combustion chamber located within the engine proper. Simply stated‚ a heat engine is an engine that converts heat energy to mechanical energy. The internal- combustion engine should be distinguished from the external- combustion engine‚ for example‚ the steam engine and the Stirling engine‚ which burns fuel outside the prime mover‚ that is‚ the device that actually produces mechanical

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    Molar Mass Lab

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    Determination of the molar mass of carbon dioxide Purpose: The purpose of the practical that we completed was to determine the molar mass of carbon dioxide (CO2) by experimental means and to observe the reaction of hydrochloric acid and sodium carbonate. Using the balanced equation: Na2CO3 + 2HCl → 2NaCl + H2O + CO2 Materials / Apparatus: 1) 8.00g of sodium carbonate‚ 2) 30mL of hydrochloric acid (6molL-1) 3) 100mL of hydrochloric acid (6molL-1) 4) 100mL conical flask‚ 5) 150mL glass beaker 6)

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