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Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100 lbf/in.2, v₁ = 3.704 ft³/lb, and T₁ = 1000 °R. to a final state where p₂ = 30 lbf/in.2 The process is polytropic with n=1.4. The change in specific internal energy, in Btu/lb, can be expressed in terms of temperature change as Au = (0.171)(T₂-T1). Determine the final temperature, in °R. Kinetic and potential energy effects can be neglected. T₂ = i °R

Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100 lbf/in.2, v₁ = 3.704 ft³/lb, and T₁ = 1000 °R. to a final state where p₂ = 30 lbf/in.2 The process is polytropic with n=1.4. The change in specific internal energy, in Btu/lb, can be expressed in terms of temperature change as Au = (0.171)(T₂-T1). Determine the final temperature, in °R. Kinetic and potential energy effects can be neglected. T₂ = i °R

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100 lbf/in.², v₁ = 3.704 ft³/lb, and T₁ = 1000 °R, to a final state where p₂ = 30 lbf/in.² The process is polytropic with n = 1.4. The change in specific internal energy, in Btu/lb, can be expressed in terms of temperature change as Au = (0.171)(T2-T1). Determine the final temperature, in °R. Kinetic and potential energy effects can be neglected. T₂ = 1 °R
Transcribed Image Text:Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100 lbf/in.², v₁ = 3.704 ft³/lb, and T₁ = 1000 °R, to a final state where p₂ = 30 lbf/in.² The process is polytropic with n = 1.4. The change in specific internal energy, in Btu/lb, can be expressed in terms of temperature change as Au = (0.171)(T2-T1). Determine the final temperature, in °R. Kinetic and potential energy effects can be neglected. T₂ = 1 °R
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