is the quantity of energy required to A. raise the temperature of a unit mass of a substance by one degree Celsius. B. convert a unit mass of liquid to vapour at constant temperature and pressure. C. convert a unit mass of solid to vapour at constant temperature and pressure. D. convert a unit mass of liquid to vapour at a temperature of 100°C and a pressure of one atmosphere. Thermal energy is transferred through
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IB Thermal Physics MCQ questions ( Higher) 1. Thermal energy is transferred through the glass windows of a house mainly by A. conduction. B. radiation. C. conduction and convection. D. radiation and convection. 2. The first law of thermodynamics may be expressed in terms of the quantities below. DU‚ the increase in the internal energy of the system Q‚ the energy transferred to the system by heating W‚ the work done on the system Which one of the following is a correct statement
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and research and development. FLIR not only manufactures thermal cameras‚ but they also offer products in the following industries: o Automotive o Border Security o Surveillance o Utility o Marine o Search & Rescue o Home Inspection o Medical FLIR’s annual revenue in FY07 was $219.2 million in the Thermography industry. The HeatSeeker 3000 will be in direct competition with FLIR’s B Series Thermal Imagers and the InfraCAM SD Thermal Imagers. They are targeted towards home inspectors‚ HVAC
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Energy conservation is a very important part of energy planning and its management. It not only saves energy resources for future‚ avoids wasteful utilisation of energy‚ provides solution to energy crisis and ensures higher per capita availability/ consumption but controls environmental degradation and pollution. New strategy emphasies greater reliance on non-exhaustible and non-conventional sources of energy so as to conserve exhaustible conventional resources like coal‚ petroleum‚ natural gas
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Thermal power plants are one of the main sources of electricity in both industrialized and developing countries. These plants have drawn flak on consumption of non-renewable sources of energy at a rapid rate and also since they release huge amounts of greenhouse gases into the atmosphere. The anti-greenhouse gas activists are calling for thermal power to be replaced by other cleaner sources of energy. Functioning of thermal power plant: In a thermal power plant‚ one of coal‚ oil or natural gas
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f ff f f s d gs df sdfgwsgsd gfsdfljkljgs sjgfskjflskjgsl sjflskjsjg skgsjjljdf s jskjljlsjlkjs sjfkjsdflgsenters the boiler at a pressure of 18 MPa‚ and saturated vapor enters the turbine. The condenser pressure is 6 kPa. Determine (a) the thermal efficiency. (b) the back work ratio. (c) the net work of the cycle per unit mass of water flowing‚ in kJ/kg. (d) the heat transfer from the working fluid passing through the condenser‚ in kJ per kg of steam flowing. (e) Compare the results of
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Instructor] [Subject] [Date] Investigative Essay on Energy Drinks Energy drinks is a trend now. Peoples are very commonly used these drinks to get energy which increases number of emergencies (Appleton‚ 2011‚ pp. 102-117). Energy drinks due to its bad impact on human health also not considered as a good approach to get instant energy. It may cause sudden increase in heartbeat‚ seizures and insomnia‚ that’s why most of the countries or states ban energy drinks containing 180 mg of Caffeine (Watson
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References: * Lakhoua MN. SCADA applications in thermal power plants. International Journal of the Physical Sciences Vol. 5(6)‚ pp. 1175-1182‚ June 2010 * Lakhoua MN. Application of Functional Analysis Techniques and Supervision of Thermal Power Plants. * Lakhoua MN (2009c). Supervision of a counting system of the natural gas of a thermal power plant. J. Eng. Technol. Res. ISSN: 2006- 9790. Open Access wwJournals. 1(9): 188-193. * http://www
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Energy Conservation SCI/275 Energy conservation is so important. Why you ask? Because of the limited amount of nonrenewable energy sources on Earth‚ it is important to conserve our current supply or to use renewable sources so that our natural resources will be available for future generations. Energy conservation is also important because consumption of nonrenewable sources impacts the environment. Specifically‚ our use of fossil fuels contributes to
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Linear Thermal Expansion The term thermal expansion refers to the increase in size of an object as that object is heated. With relatively few exceptions‚ all objects expand when they are heated and contract when they are cooled. Perhaps the most important exception to this rule is water. Water contracts as it cools from its boiling point to about 39.2°F (4°C). At that point‚ it begins to expand as it cools further to its freezing point. This unusual effect explains the fact that ice is less dense
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