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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home. A well insulated house keeps warmth indoors and not letting heat escape. By insulating a loft it will help to heat the home more efficiently. Using less energy reduces carbon dioxide emissions (CO2): which is one of the biggest causes of climate change. Another advantage is that people will also save money on their bills too. [1] Glass fibre or other loft insulation materials are laid across the loft to reduce the rate of heat transfer out of the roof. Glass fibre works as an insulator by trapping
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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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Set up a clamp stand so that it is holding a 100cm3 beaker. 2. Using a measuring cylinder‚ pour 50cm3 of water into the beaker. 3. Use a thermometer to record the temperature of the water. 4. Place some aluminium foil over the beaker to prevent heat loss. 5. Record the mass of a peanut using an electronic balance. 6. Use a mounted needle to carefully pierce the peanut. 7. Get the peanut burning in a Bunsen flame and hold the burning peanut directly beneath the beaker of water until it goes
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Heats of Reaction – Hess’s Law Overview Hess’s Law states that the energy change for a reaction depends on the enthalpy of the reactants and products and is independent of the pathway of the reaction. In this experiment you will use calorimetry to measure the heats of reaction for three reactions: Reaction 1 Reaction Equation NaOH(s) → Na+(aq) + OH-(aq) Solid NaOH is dissolved in water 2 Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) → Na+(aq) + Cl-(aq) + H2O(l) Solutions of NaOH and HCl are mixed 3 NaOH(s)
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Standard kitchen layouts During the last fifty years‚ most designers were building on three types of kitchen layouts: the L-shaped kitchen‚ the U-shaped kitchen and the gallery kitchen. The gallery layout was very suitable for small kitchens. All these three layouts had one thing in common: the work triangle concept. They all placed the three main kitchen components (the refrigerator‚ the stove and the sink) in a triangular position. Modern trends Another research study conducted more recently
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emitter of radiation and it will reflect escaping heat by reflecting‚ because this method is used in flasks to keep hot drinks warm. Though it is a good conductor so will lose heat through to surfaces its touching but it shouldn’t matter because it will be touching air and glass which both are really poor conductors. Bubble wrap‚ foaming and cotton wool can be used as an insulator because it will trap heat in air pockets and air is a poor conductor of heat‚ hence it will be a good insulator. I shall not
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thermodynamics which stated that for any process occurring in a closed system‚ the entropy increases for an irreversible system and remains constant for a reversible system‚ but never decreases. An air-conditioner functioned by using a working fluid to transfer heat from the colder indoor air to the hotter outside air. So the indoor air will be cooled down to a favorable temperature for indoor activities. Second law of thermodynamics defines as the entropy of an isolated system never decreases due to isolated
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[pic] MADRAS FERTILIZERS LIMITED DURATION OF TRAINING: 2 WEEKS (7.12.09 – 18.12.09) NAME OF THE GUIDE: Mr. P.GNANASAMBADHAM (Deputy Manager‚ Process Engg Dept). [pic] SUBMITTED BY‚ BALAJI.N (10708011)‚ 2nd YEAR‚ B.Tech CHEMICAL ENGG‚ DEPT OF CHEMICAL ENGINEERING‚ SRM UNIVERSITY. ACKNOWLEDGEMENT: I sincerely thank my HOD Dr. R.Karthikeyan for encouraging me to under go an IN-PLANT TRAINING. I also thank the other staffs of the department
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Chapter 18 Vocabulary • Energy Efficiency- Percentage of the total energy input that does useful work and is not converted into low-quality‚ usually useless heat in an energy conversion system or process. See energy quality‚ net energy. • Incandescent Light Bulb- One largely used devices that uses large amounts of energy‚ wastes 95% of its energy input of electricity • Internal Combustion Engine- Another device that uses a lot of energy‚ wastes 75%-80% of the energy in its fuel • Coal-Burning
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