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12.3 kg of refrigerant 22 undergoes a process for which the pressure-specific volume relation is pv^-0.8 = constant. The initial state of the refrigerant is 12 bar and 60 degrees C. The final pressure is 8 bar. Kinetic and potential energy effects are negligible. Determine the work, in kJ, for the process.
on a given day the pressure is 1 atm the temperature is 32degc and the relative humidity is 95. this air is to be
an ideal carnot heat engine has an efficiency of 40. if the high temperature is raised 15 what is the new efficiency
a hollow steel shaft g 77.2 gpa allowable stress 50 mpa outer diameter 60 mm inner diameter 25 mm length 5 m
consider a flow of air in a duct assume standard atmospheric pressure at 5000 ft altitude p12.228psi. at section 1 the
you are to select a refrigerator for frozen food processing facility. the freezing of the food requires a heat rate of
initially an insulated rigid tank contains 3.73 kg of water at 240oc and 1 mpa. a heater in the wall of the tank
a supertanker is 360 m long and has a beam width of 70 m and a draft of 25 m. estimate the force and power required to
Carbon-dioxide gas at 3MPa and 500 K flows steadily in a pipe at a rate of 0.4kmol/s. Determine a) the volume and mass flow rates and the density of carbon dioxide at this state. If CO2 is cooled at a constant pressure as it flows in the pipe so that..
body a has a mass of 50 kg while the mass of body b is 20 kg. a force f 500 n is applied to body a parallel to the
the hull of a boat has a volume of 150 m3 and the total mass of the boat when empty is 8560 kg. determine how much load
consider a compressor operating at steady state. how would you compare the volume flow rate of the air at the inlet and
a block with mass m 13 kg is projected up a rough incline angled at ? 30 degrees to the ground with a speed of v 6.4
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