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Air is expanded in an adiabatic closed system from 180

Thermodynamics: An Engineering Approach | 8th Edition | ISBN:  9780073398174 | Authors: Yunus A. Cengel, Michael A. Boles ISBN: 9780073398174 56

Solution for problem 26P Chapter 8

Thermodynamics: An Engineering Approach | 8th Edition

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Thermodynamics: An Engineering Approach | 8th Edition | ISBN:  9780073398174 | Authors: Yunus A. Cengel, Michael A. Boles

Thermodynamics: An Engineering Approach | 8th Edition

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Problem 26P

Problem 26P

Air is expanded in an adiabatic closed system from 180 psia and 140°F to 20 psia with an isentropic expansion efficiency of 95 percent. What is the second-law efficiency of this expansion? Take T0 = 77°F and P0 = 14.7 psia.

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1/11/17 PHYS 202 The syllabus is online Chapter 11 Preview: The basic Energy Model  This chapter is about thermal energy, chemical energy, and energy transfers in the form of heat  Work and heat are energy transfers that change the system’s total energy. If the system is isolated, the total energy is conserved o If energy goes into the system from the environment, the system’s energy increases, opposite the system loses energy  If Environment pushes an object, kinetic energy is exerted thus moving the object. Then it stops based on friction, increasing the thermal energy, then it leaves and cools. Clicker Question: Christina throws a javelin into the air. As she propels it forward from the rest, she does 270J of

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Chapter 8, Problem 26P is Solved
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Textbook: Thermodynamics: An Engineering Approach
Edition: 8
Author: Yunus A. Cengel, Michael A. Boles
ISBN: 9780073398174

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Air is expanded in an adiabatic closed system from 180