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A rigid steel bottle, V = 0.25 m3, contains air at 100 kPa, 300 K. The bottle is now charged with air from a line at 260 K, 6 MPa to a bottle pressure of 5 MPa, state 2, and the valve is closed. Assume that the process is adiabatic, and the charge always is uniform. In storage, the bottle slowly returns to room temperature at 300 K, state 3. Find the final mass, the temperature T2, the final pressure P3, the heat transfer 1Q3 and the total entropy generation.
the turbocharger of an internal combustion engine consists of a turbine and a compressor. hot exhaust gases flow
Model the earth as a sphere with a diameter of 8,000 miles. Using 14.7 psia as the average pressure at the earth's surface and ignoring variation in g with altitude, estimate the weight of the earth's atmosphere in lbf, and its mass in lbm.
1 youngs modulus for aisisae 1045 steel is 29.0 x 10 6 psi and its poissons ratio is 0.32. what are its shear and bulk
an insulated piston-cylinder device contains 3 liter of saturated liquid water. the pressure is at 120kpa. now an
an actual refrigerator absorbs 500 kj of heat from a sink at 250 k and reject 660 kj of heat to environment at 300 k.
Calculate the e?ciency of the furnace if the speci?c heat capacity of the water is cp = 4.2kJ/(kgK) and the zero level of enthalpy is at 0?C! (η = 79.6%)
Calculate real gas pseudopressure at a pressure of 1902.7 psia using the following data and a base pressure of 102.7 psia. Was the calculation of real gas pseudopressure necessary for this gas? Explain your answer.
in usa 53 of total electric power is currently generated by coal-fired power plants. typically generation of 1 kwh of
calculate the specific exergy for i water and ii r-134a and iii air at p 0.6 bar and t 10oc. assume to 20oc and po
a vehicle a is stuck on the railroad tracks as a train b approaches with a speed of 120 kmh. as soon as the problem is
A 1300 car is traveling along a straight road at 18 . Two seconds later its speed is 21. What is the magnitude of the net force acting on the car during this time?
an adiabatic turbine expands steam from 500 c and 4000 kpa to 200 c and 300 kpa. the tubrine geneateds 750 kw of power.
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