EXPERIMENT AIM: To determine the experimental heat of combustion of methanol (CH3OH) and ethanol (CH3CH2OH). To decide which would be a better choice to take on a camping trip. MATERIALS: 1 Copper container 1 Clamp 1 Spirit Lamp with Wick Ethanol 1 Retort Stand Methanol 1 Box of Matches Water 1 Electronic Balance Thermometer PROCEDURE: Firstly‚ Measure the weight of the empty Copper container on the electronic balance. Record your results in a table. Secondly‚ fill the copper container with
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conditional cash transfer (CCT)? What makes it different from the unconditional cash transfer (UCT)? Conditional cash transfer is one of social transfer programs that grant poor households with regular cash under certain condition with which they comply by behaving as required‚ for instance sending their children to school or attending health clinics (Kidd and Calder 2011‚ p. 6). Basically‚ CCT comes with two dual objectives: 1) quick or short-term poverty reduction by means of cash transfers and 2) long-term
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ATM The Many Faces of Asynchronous Transfer Mode Table of Contents Introduction 3 ATM Objectives 3 Basic Concepts in ATM 4 ATM Standards 7 ATM Switching 11 Switching Networks 12 Performance Issues 12 ATM Applications 14 Consumer Applications 14 Commercial Applications 16 Summary 17 References 19 The Many Faces of Asynchronous Transfer Mode Introduction Asynchronous Transfer Mode (ATM) has been accepted universally as the transfer mode of choice for Broadband Integrated
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The Plant Cell‚ Vol. 17‚ 1829–1838‚ June 2005‚ www.plantcell.org ª 2005 American Society of Plant Biologists Dual Role for Tomato Heat Shock Protein 21: Protecting Photosystem II from Oxidative Stress and Promoting Color Changes during Fruit Maturation Inbal Neta-Sharir‚a Tal Isaacson‚b Susan Lurie‚c and David Weissa‚1 a Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture‚ Faculty of Agricultural‚ Food‚ and Environmental Quality Sciences‚ Hebrew University of Jerusalem‚ Rehovot
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multiple aspects such as meteorological‚ sociological‚ political‚ ethnographic‚ political‚ and journalistic aspects to explain the Heat Wave of 1995 in Chicago. My preliminary diagnoses of the cause of the high death rate would be that the heat wave worsened the health of Chicagoans who were already diagnosed with serious health conditions. The author poses a question that the heat wave may have affected the individuals who were already stricken with a disease. These individuals include African Americans
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Selection criteria 4. Principle of solar water heater with phase change materials 5. Heat transfer analysis between water and PCM’s 6. Results 7. Conclusion CHAPTER – 1 INTRODUCTION PHASE CHANGE MATERIALS: The materials which undergo either boiling or condensing by absorbing heat from a medium or liberating heat to a medium are called as phase change materials. Characteristics PCMs latent heat storage can be achieved through solid–solid‚ solid–liquid‚ solid–gas and liquid–gas phase
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(.)m is the mean value of ().(). The mean value of ().() can be found by means of integrals over the hemispherical sky as follows: (.)m = [0/2 ().().sin .cos .d()] / [0/2 sin .cos .d()]. For one glass cover the result is approximately (.)m = 0.70. Heat Losses The glass cover behaves nearly as a black body for long-wave radiation. We can assume that the emittance c of the glass cover is 0.95. The emittance b of the black plate for long-wave radiation depends on whether the surface is non-selective
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thermal insulation. I used the tin foil because it serves as an insulator and keeps the radiant heat inside the box. Next I used insulation‚ which does what its name is‚ it keeps whatever inside of it insulated or prevents convection. I used silicone to block off the holes from the Styrofoam to make a good box for the heat to stay in. finally I used a cork on the top of my can to have the smallest hole for the heat to escape it. III. For this experiment I used Styrofoam‚ tinfoil‚ insulation
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Conduction Conduction Conduction is the transfer of thermal energy between regions of matter due to a temperature gradient. In the engineering sciences‚ heat transfer includes the processes of thermal radiation‚ convection‚ and sometimes mass transfer and often more than one of these processes occurs in a given situation.Shaun Prado 8F Shaun Prado 8F Steady-state conduction Steady state conduction is the form of conduction. This happens
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helical coils top and bottom. The furnace is large and the water in the coils is force circulated at more than 5 times full boiler output. Thus very high heat transfer and radiation rates can be designed for with complete safety as the tube walls are nailed to a temperature a few degrees higher than the steam-water saturation temperature. Heat absorption rates as high as 60‚000BTU/ft.sq. for
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