1-ft3 of air is contained in the spring-loaded pistoncylinder device shown in Fig. P4-56E. The spring constant...

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1-ft3 of air is contained in the spring-loaded pistoncylinder device shown in Fig. P4-56E. The spring constant is 5 lbf/in, and the piston diameter is 10 in. When no force is exerted by the spring on the piston, the state of the air is 250 psia and 460oF. This device is now cooled until the volume is one-half its original size. Determine the change in the specific internal energy and enthalpy of the air.
1-ft3 of air is contained in the spring-loaded pistoncylinder device
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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