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A piston cylinder contains 1 kg of R-134a and undergoes a reversible compression process. During the process the R-134a also loses 37 kJ of heat to the environment. If the temperature of the piston remains a constant 20 oC and the initial the pressure of the refrigerant is 240 kPa, determine the work required to compress the system
0.12 kg of argon fills a 0.038 m3 weight-piston-cylinder device at 445 kpa. the piston is now moved by decreasing the
a man pulls himself up the 15o incline by the method shown. if the combined mass of the man and the cart is 100 kg
a simply supported beam of length 18 ft. is subjected to a trapezoidally distributed load that has a value of 3 kipft
steam enters a well-insulated turbine operating at steady state at p14mpa t1320c and a velocity v110ms. the steam
carbon dioxide gas enters a pipe at 3.1 mpa and 520 k at a rate of 1.71 kgs. the co2 is cooled at a constant pressure
suppose you are outside on a cold day with no gloves. assume your hands have an area of 0.01 m2. the temperature of
when a plastics plant is redesigned a tank exit is now facing the wrong direction and must be connected to a pipe of
the amount of a uniformaly distributed radioactive contaminant contained in a closed reactor is measured by its
a commercial steel pipline is to convey 20 ft3s of water at 68 f between two reservoirs 5 miles and 200 feet different
steam enters a diffuser at 20 psia and 240of with a velocity of 900 fts and exits as saturatednbspvapor at 240of and
a 2250 l tank contains 5.682 kg of steam at 5 bar. determine the temperature and z compressibility of steam using a.
a rigid tank has a volume of 60 liters and initially contains a two-phase liquid-vapor mixture of h2o at a pressure of
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