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A gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes in series, beginning at state 1 where p₁ = 1 bar, V₁ = 1.5 m³, as follows: Process 1-2: Compression with pV = constant, W₁2 = -104 kJ, U₁ = 512 kJ. U₂ = 690 kJ. Process 2-3: W23 = 0, Q23 = -150 kJ. Process 3-1: W31 = 50 kJ. There are no changes in kinetic or potential energy. Determine Q12 in kJ

A gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes in series, beginning at state 1 where p₁ = 1 bar, V₁ = 1.5 m³, as follows: Process 1-2: Compression with pV = constant, W₁2 = -104 kJ, U₁ = 512 kJ. U₂ = 690 kJ. Process 2-3: W23 = 0, Q23 = -150 kJ. Process 3-1: W31 = 50 kJ. There are no changes in kinetic or potential energy. Determine Q12 in kJ

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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A gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes in series, beginning at state 1 where p₁ = 1 bar, V₁ = 1.5 m³, as follows: Process 1-2: Compression with pV = constant, W12-104 kJ, U₁ = 512 kJ, U₂ = 690 kJ. Process 2-3: W23 = 0, Q23 = -150 kJ. Process 3-1: W31 = 50 kJ. There are no changes in kinetic or potential energy. Determine Q12 in kJ
Transcribed Image Text:A gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes in series, beginning at state 1 where p₁ = 1 bar, V₁ = 1.5 m³, as follows: Process 1-2: Compression with pV = constant, W12-104 kJ, U₁ = 512 kJ, U₂ = 690 kJ. Process 2-3: W23 = 0, Q23 = -150 kJ. Process 3-1: W31 = 50 kJ. There are no changes in kinetic or potential energy. Determine Q12 in kJ
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