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[DOC File]California State University, Northridge
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For oxygen, R = 0.2598 kJ/kg∙K from Table A-1 on page 910 and cv = 0.686 kJ/kg∙K at the mean temperature of 429.15 K, from Table A-2(b) on page 912. Substituting these numbers into the equation for constant heat capacity gives the desired result. s2 – s1 = -0.1076 kJ/kg∙K. 2.
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[DOC File]THERMODYNAMICS, HEAT AND MASS TRANSFER
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[R = 287 J/kg K, CV = 718 J/kg K] Shaft work (500 kJ/kg) is transferred to the air-filled frictionless piston-cylinder device shown in Figure P3.7. Determine the heat transfer (kJ/kg). The initial and final states of the air are T1 = 2000C, P1 = 400 kPa and T2 = 2500C, respectively. [CP = 1.005 kJ/kg …
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[DOC File]Energy Problems (Kinetic and GPE)
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2.45 g = m KE = ½ x ()2 KE = J or x 104 J. A 725 kg car has a kinetic energy of 302 kJ as it travels along a highway. What is the car’s speed? 4.0 m/s = v KE = ½ m x v2 KE = x . 2.45 g = m KE = ½ x ()2 KE = J or x 104 J. What is the gravitational potential energy associated with a 75 kg tourist at the top floor of the Sears Tower in ...
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[DOC File]Latent heats
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Substance Latent Heat Fusion kJ/kg Latent Heat Fusion J/mole Melting Point °C Latent Heat Vaporization kJ/kg Boiling Point °C at 1013 mb Alcohol, ethyl 108 -114 855 78.3 Ammonia 339 -75 1369 -33.34 Carbon dioxide 184 -57 574 -78 Helium 21 -268.93 Hydrogen 58 -259 455 -253 Lead 24.5 372.3 871 1750 Methane 58.7 -182. 510 -161.6 °C Nitrogen 25 ...
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[DOC File]Productivity Calculations SOLUTIONS
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Assume 1 kg of carbon produces 10,000 kJ. 5 kg C/ m2-year * 10,000 kJ / kg C = 50,000 kJ/m2-year . Imagine we run an experiment on the algae Cladophora glomerata. We place equal amounts of algae into a light bottle and a dark (covered) bottle. We measure the dissolved oxygen in both bottles and find it …
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[DOC File]TAP 608- 4: Questions involving specific heat capacity and ...
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Specific heat capacity of iron at 100 °C = 220 J kg-1 K-1. Latent heat of vaporisation of water = 2260 kJ kg-1. Latent heat of fusion of water = 334 kJ kg-1. Density of ice at 0°C is 917 kg m-3. 1. Compare the energy you need to transfer to raise the temperature of 1kg of water from 20°C to 100°C and the energy you need to transfer to boil ...
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Kj kg to j kg