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A closed, rigid container encloses 1.50 kg of air at 0.100 MPa and 20.0°C. We wish to increase the temperature to 40.0°C by heat transfer.
Assuming constant specific heat ideal gas behavior, determine (a) the irreversibility and (b) the change in total availability of the air when this change of state is accomplished using a constant system boundary temperature of 100.°C and the local environment is at 0.101 MPa and 20.0°C.
an angled jet of water comes from the ground at 5 m s at a 35 degree angle from the horizontal. how high does the
two fixed horizontal parallel plates are spaced 0.2 inches apart. a viscous liquid mu8x10-3 lb sft2 sg0.9 flows between
consider an r-134a compressor on a refrigeration system. if the refrigerant enters as saturated vapor at 200 kpa 0.03
You own an aluminium processing plant, and want to hot roll aluminium from a billet to a sheet form. The billet is 5m long, 3m wide and 0.25m thick. Your output sheet is to be 0.001m in thickness by 3m width. You configured your plant as a flexible m..
if the exit velocity needs to be 27 ms and the nozzle tip has a diameter of 0.48 mm what is the volumetric flow rate
a spring-mass system has a frequency of 2 hz. when the mass is decreased by 0.4 kg the frequency is changed by 25.
A slow leak develops in an inner tube (volume, 0.5 ft3, temperature, 600F), wherein it takes 4 hours for the pressure to decrease from 30 to 25 psig. The mass flow rate of air per second under the conditions is given by 0.68pA/(RT)0.5, where the unit..
a mass of 2.4 kg of air at 150 kpa and 12ordmc is contained in a gas-tight frictionless piston-cylinder device. the air
Air is compressed at steady state from 1 bar, 300 K to 5 bar 500 K using 150 kW of power. The compressor produces 50 kW of heat that is transferred to the surroundings. Assuming an ideal gas determine the mass flow rate of the fluid.
a 30-ton engine exerts a constant horizontal force of 40103-lb on a train having three cars that have a total weight of
The inner and outer surfaces of a 5-m x 6-m brick wall of thickness 30 cm and thermal conductivity 0.69 W/m · °C are maintained at temperatures of 20°C and 5°C, respectively. Determine the rate of heat transfer through the wall, in W.
Mooney Sounds, a local stereo retailer, needed a new store because it had outgrown the leased space it had used for several years. Mooney acquired and remodeled a former grocery store.
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