mixture‚ and (c) the density of the mixture. 3 2. A piston–cylinder device contains 0.85 kg of refrigerant-134a at 10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now‚ heat is transferred to refrigerant-134a until the temperature is 15°C. Determine (a) the final pressure‚ (b) the change in the volume of the cylinder‚ and (c) the change in the enthalpy of the refrigerant-134a. 3. Determine the specific volume of superheated
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they would probably do it. But Nuclear Fusion‚ unlike its cousin‚ Nuclear Fission‚ is quite difficult to achieve. Nuclear fission is the process of splitting large atoms‚ usually Uranium 235‚ to produce massive amounts of energy. The process enacted within all nuclear power plants is Nuclear Fission. Nuclear Fusion‚ on the other hand‚ is the exact opposite; Taking small atoms such as Hydrogen and pushing them together to build larger atoms. In theory‚ fusion produces more energy than fission in a
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Conclusions The purpose of this experiment was to find the relationship between a substance’s specific heat and its atomic weight. In the lab‚ the substances with the higher atomic weights had less specific heat. From this‚ we can conclude that specific heat and atomic weight have an inverse relationship‚ meaning as one decreases the other increases. The reason for this is because if atoms are small‚ or light‚ they have the ability to pack tightly together‚ leaving almost no space between them
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Vostok Ice-core lab‚ based on the data obtained in the ice-core. It mainly addresses the relationship between the composition of ice core and temperature change. Moreover‚ the controversy of main reason of global warming will be discussed. Method: In this report‚ the data is obtained from the Vostok core drilled in East Antarctica‚ at an altitude of 3488m. The ice core has a total length of 2083m. In the sample‚ the temperature‚ composition of CO2‚ CH4‚ and dust in different each ice sheet layer
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Experiment 1 The Heat Capacity Ratio of Gases Purpose The purpose of this experiment is to calculate the heat capacity ratio of gases‚ Helium‚ Nitrogen and Carbon Dioxide‚ and compare with their theoretical values. Introduction Thermodynamics is the study of heat as it relates to energy and work. There are various properties which all relate to each other when determining the characteristic of a certain substance. One of such properties is heat capacity‚ which is the amount of heat energy required
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temperature above 35*C‚ hot air in work place. Humidity Directly affected humid outdoor conditions‚ excessive of humidity above 80%‚ steam or heat producing source or equipment‚ completely wet skin condition of workers. Heat Radiation Working under direct sunlight‚ sources / heat generating facilities (e.g. fire‚ welding‚ hot surfaces and machinery) in close proximity to workers. Workload Heavy work load‚ carrying
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Heat and Dust (Characters and Summary) Heat and Dust Characters: 1923Olivia‚ Douglas‚ The Nawab‚ Mr./Mrs. Crawford‚ Mr./Mrs. Minnies‚ Harry‚ The Begum‚ Dr. Saunders Present timeThe Narrator‚ Inder Lal‚ Chid‚ Maji‚ Dr. Gopal‚ Karim and Kitty‚ Ritu‚ Inder Lal’s mother Summary The narrator of the present went to India in order to find out her grandfather’s first wife– Olivia’s story. She gets to know the Indian officer Inder Lal‚ who sublets her a small room in Satipur and becomes
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convenient yet harmful technological advancements‚ the environment is being severely damaged. Humans‚ yet‚ remain ignorant on the issues since we cannot witness the immediate impact of our degrading conditions of nature and its resources. The movie‚ Chasing Ice‚ a contemporary documentary‚ is a vivid depiction of the weakened and vitiated environment of the twenty-first century‚ through the dramatic lens and images of National Geographic’s photographer‚ James Balog. Being a talented photographer with various
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Air Source Heat Pump Description and Operation: A heat pump is classified according to the source from which it extracts heat‚ i.e. the low temperature heat source. One that collects and utilises thermal energy from the outside air to heat the home and provide domestic hot water is called an air source heat pump. In an air source heat pump‚ outdoor air is drawn into the heat exchanger‚ which contains coils filled with a pressurised refrigerant gas. The refrigerant gas referred to here is
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Medicine in Sport (2008) 11‚ 6—19 REVIEW Heat stress and strain in exercise and sport John R. Brotherhood The University of Sydney‚ Exercise and Sport Science‚ Faculty of Health Sciences‚ Australia Received 3 May 2007 ; received in revised form 27 August 2007; accepted 28 August 2007 KEYWORDS Heat stress in sport; Exercise thermoregulation; Rational analysis of heat stress; WBGT; Risk assessment for exertional heat illness Summary Heat stress arising from the thermal environment is of
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