Engineering, 11.07.2019 01:10 billy1123
Apiston-cylinder device contains 0.1 kg of hydrogen gas (pg model: cv=10.18, k = 1.4, r= 4.12 kj/kg-k) at 1000 kpa and 300 k. the gas undergoes an expansion process and the final conditions are 500 kpa, 270 k. if 10 kj of heat is transferred into the gas from the surroundings at 300 k, determine (a) the boundary work (wb), and (b) the entropy generated (sgen) during the process
Answers: 2
Engineering, 03.07.2019 14:10
When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
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Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 18:20
How much power could a wind turbine produce if it had the following specifications? cp = 0.45 -d=1.2kg/m3 d=50m v 5m/s
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Apiston-cylinder device contains 0.1 kg of hydrogen gas (pg model: cv=10.18, k = 1.4, r= 4.12 kj/kg...
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