Fundamentals Of Engineering Thermodynamics
9th Edition
ISBN: 9781119391388
Author: MORAN, Michael J., SHAPIRO, Howard N., Boettner, Daisie D., Bailey, Margaret B.
Publisher: Wiley,
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Chapter 3, Problem 3.47P
To determine
Heat transfer, work transfer, and show the process on the pressure versus temperature diagram.
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Air in a rigid tank is at 200oC and 150 kPa. The air is cooled to a final equilibrium state of 60oC . i. Determine the change in pressure of the air, kPa. ii. Show and label the process on a temperature versus volume (P-v ) diagram. The gas constant for air, R is 0.287 kJ/kg.K and the universal gas constant, Ru is 8.314 kJ/kmol.K.
* Your answer is incorrect.
Water contained in a piston-cylinder assembly, initially at 300°F, a quality of 80%, and a volume of 6 ft3, is heated at constant
temperature to saturated vapor.
If the rate of heat transfer is 0.3 Btu/s, determine the time, in min, for this process of the water to occur.
Kinetic and potential energy effects are negligible.
At =
i 5.217
min
For each of the following cases, determine the specifified properties and show the states on the sketches of the P −υ and T −υ diagrams.
a) For water at T = 320 °C, υ = 0.03 m3/kg, find P in MPa and u in kJ/kg.
b) For water at T = 200 °C and υ = 0.2429 m3/kg, determine P in bar and ℎ in kJ/kg
c) For water at P = 4 MPa, T =160 °C, fifind υ in m3/kg and u in kJ/kg.
Chapter 3 Solutions
Fundamentals Of Engineering Thermodynamics
Ch. 3 - Prob. 3.1ECh. 3 - Prob. 3.2ECh. 3 - Prob. 3.3ECh. 3 - Prob. 3.4ECh. 3 - Prob. 3.6ECh. 3 - Prob. 3.7ECh. 3 - Prob. 3.8ECh. 3 - Prob. 3.9ECh. 3 - Prob. 3.10ECh. 3 - Prob. 3.11E
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