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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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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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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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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Investigatory Project in Physics Color vs. Heat Absorption Prepared by: Lorrey Mae Olegario Aisha Kassandra Beltran Ed Niza Lorenzo Nor Ebrahim Tanangonan Edward Jexel Fernandez Raven Bernales The objective: The objective was to see which colored jars had the highest emissivity (or absorbed heat the fastest) & which colors radiate heat the fastest by performing independent tests for heating & cooling the colored jars. Methods/Materials Nine of the 10 small jars were painted
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ice cream maker: P=VI P=(120 V)(1.2 A) P= 144W P=W/t W=(P)(t) W= (144 W)(1740 s) W= 250560 J Heat Gained by ice (as it cools and melts): q=mcΔt = (4.082 kg)(4186 J/kg°C)(13°C) = 222‚134.276 J q=mL = (1.25kg)(3.34x105) = 417‚500 J 222‚134.276 J + 417‚500 J = 639‚634.276 J Heat lost by metal bucket: q=mcΔt = (0.196 kg)(897 J/kg°C)(23.3°C-5°C) = 3217.36 J Heat lost by ice cream: QIce Cream= Q1+Q2 Q1=mcΔt Q2=mL QIce Cream = (0.666kg)(3000J/kg°C)(13°C)+(0.666kg)(2.1014x105
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water Boiler structure and advantages WNS Series Horizontal Oil/Gas Fired hot water Boiler which is fast-loading‚ internal combustion‚ three through and all wet-back tube boiler popular in Pakistan. In the first through‚ the flame and smoke will heat the thread barrel‚ then in the second though and the third though the inside water tubes will be heated again. At last‚ after disposing‚ the smoke will be discharged into the open air from smoke room to chimney. Besides‚ the Italy imported burner‚
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Disruption A disruption of thermoregulation can potentially cause unbalance within the body. As referenced in Resource B‚ one of the cyclists called Sally hurt herself while biking on Day 4. She “clipped my back wheel and down she went‚ massive graze on the knee and nasty gash on her elbow.” (Resource B) Yet in Day 6‚ it is mentioned that among the hot temperatures‚ Sally was battling a fever and nausea due to an infection from one of her injuries. Fever and infection can offset thermoregulation
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