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3. A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, p = 1.4 bar, V₁ = 0.028 m², W₁2 = 10.5 kJ Process 2-3: Compression with pV = constant, U3 = U2 Process 3-1: Constant volume, U1 -U3 = 226.4 kJ There are no significant changes in kinetic or potential energy. a. Sketch the cycle on a p-V diagram. b. Calculate the net work for the cycle, in kJ. c. Calculate the heat transfer for process 1-2, in kJ.

3. A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, p = 1.4 bar, V₁ = 0.028 m², W₁2 = 10.5 kJ Process 2-3: Compression with pV = constant, U3 = U2 Process 3-1: Constant volume, U1 -U3 = 226.4 kJ There are no significant changes in kinetic or potential energy. a. Sketch the cycle on a p-V diagram. b. Calculate the net work for the cycle, in kJ. c. Calculate the heat transfer for process 1-2, 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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3. A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, p = 1.4 bar, V₁ = 0.028 m², W₁2 = 10.5 kJ Process 2-3: Compression with pV = constant, U3 = U2 Process 3-1: Constant volume, U1 - U3 = 226.4 kJ There are no significant changes in kinetic or potential energy. a. Sketch the cycle on a p-V diagram. b. Calculate the net work for the cycle, in kJ. c. Calculate the heat transfer for process 1-2, in kJ.
Transcribed Image Text:3. A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, p = 1.4 bar, V₁ = 0.028 m², W₁2 = 10.5 kJ Process 2-3: Compression with pV = constant, U3 = U2 Process 3-1: Constant volume, U1 - U3 = 226.4 kJ There are no significant changes in kinetic or potential energy. a. Sketch the cycle on a p-V diagram. b. Calculate the net work for the cycle, in kJ. c. Calculate the heat transfer for process 1-2, in kJ.
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