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E115_Problem_Set_18

E115_Problem_Set_18 - (5 points 3(10 points Superheated...

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e 115 Engineering Thermodynamics Fall 2009 University of California Problem set 18 Due: Monday, October 26 th 1) (10 points) Dry, saturated steam at 0.30 MPa is compressed isothermally until it is a saturated liquid. a) Sketch this process on a P - V diagram, labeling the endpoints 1 and 2. (5 points) b) Calculate the heat transfer that occurred in kJ/kg. (5 points) 2) (10 points) A rigid container contains 10 cm 3 of liquid water and 200 cm 3 of water vapor at a pressure of 0.20 MPa. It is heated until the pressure becomes 12.0 MPa. a) Sketch this process on a P - V diagram, labeling the endpoints 1 and 2. (5 points) b) Calculate the heat that was added in kJ.
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Unformatted text preview: (5 points) 3) (10 points) Superheated water vapor is at 10 MPa and 400°C. a) Determine the specific volume using the ideal gas equation. (2 points) b) Determine the specific volume using the compressibility chart. (3 points) c) Determine the specific volume using the steam tables. (3 points) d) Determine the error involved in using the ideal gas equation and the compressibility chart. (2 points) 4) (10 points) Water exists at the critical point in a rigid container. The container and water are cooled until a pressure of 10 psia is reached. Calculate the final quality....
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