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A free-floating piston which weighs 20 Kg contains 1 Kg of a 50% quality saturated mixture of water in the insulated cylinder. The piston face area is 0.01 m^2. 1000 Watts of electric power are dissipated in a resistor for a certain time causing all of the liquid to be vaporized. The piston is now locked into place and the water is heated until it reaches 200 C. Determine the total heat added to the water, the total work done and the time for the process. Sketch the 2-step process on a P-v diagram.
steam enters an adiabatic turbine steadily at 7 mpa 500 degrees c and leaves at 100 kpa. if the mass flow rate is 6.2
a steel mill has a production set up where metal sheets are rolled for desired thickness as they emerge from the
a simple ideal rankine cycle with water as the working fluid operates between the pressure limits of 3 mpa in the
a instrument weighing 40lbf is being shipped in a container with foam packaging which has effective vertical stiffness
an airplane flying at m0 0.8 under standard sea level conditions has instrumentation embedded at the stagnation point
a rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300 c. after a period of time the pressure
steam enters a nozzle at 30 bars and 320c and leaves at 15 bars with a velocity of 535 ms. the mass flow rate is 8000
water flowing through a 10-cm-diameter water pipe at a rate of 0.1 m3s. now a diffuser with an outlet diameter of 20
Calculate the pressure of 15.0g of methane gas in a 1.50L vessel at 45.0 degrees C using (a) the Ideal Gas Law and (b) the van der Walls equation using the following information about the constants, a and b: a = 2.253 and b = 0.04278.
although ripening of tomatoes can be retarded by low temperatures storage under refrigeration can cause chilling injury
a hollow sphere of aluminum with an inside radius of 0.01 m and an outside radius of 0.02 m has its outer surface
If the bar is subjected to centric forces of magnitude P = 30 kN and knowing that EA = 70 GPa and EB = 105 GPa, determine the normal stress (a) in the aluminum layers, (b) in the brass layer.
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