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A rigid container with volume 200 L is divided into two equal volumes by a partition. Both sides contain nitrogen, one side is at 2MPa, 200°C, and the other at 300 kPa, 100°C. The partition ruptures, and the nitrogen comes to a uniform state at 70°C. Assume the temperature of the surroundings is 20°C, determine the work done and the net entropy change for the process.
steam at 500 kpa 300c is used to heat cold water at 15c to 75c for domestic hot water supply. how much steam per kg
ball a is released from rest at a height of 40ft at the same time that a second ball b is thrown upward 5ft from the
a well-insulated piston cylinder contains 5kg of saturated mixture water at 150kpa. initially three-quarter of the mass
two tanks containing air are connected via a valve. the first tank is 0.5 m3 and contains air at t 25 oc and p 500
steam at 1 mpa with a quality of 0.8 passes through a throttling device that causes the pressure to rapidly drop to 200
A house is maintained at 1 atm and 24 C and warm air inside a house is forced to leave the house at a rate of 150 m^3/h as a result of outdoor air at 5C infiltrating into the house through the cracks. Determine the rate of net energy loss of th..
a cylinder filled with oil is under pressure from a piston. the diameter d of the piston is 48mm and the compressive
air at mass flow rate of 10 kgs at 1 atm 300 k point1 enters an adiabatic compressor and exists at 8 atm 600 k point 2.
Describe the machinability evaluation criteria, is it a quantitative or qualitative evaluation and describe the High Speed Machining of Steel/Iron or Aluminium
what horsepower must be supplied to a pump that operates at an efficiency of 75 to the flow if water t25degc is pumped
what is the maximum useful work that can be produced per pound of saturated steam which enters a steady flow system at
You want to know if you should replace the existing machines, which has a Cpk of 1.0. You decide to determine the Cpk for the new machines and make a decision on that basis.
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