0.2 m3 of atmospheric air at 4 bar and 130°C is contained in a system. A reversible adiabatic expansion takes place till the pressure falls to 102 kPa. The air is then heated at constant pressure till the heat added reaches 72.5 kJ. Determine the following with an aid of a pV diagram: a) The work done during the adiabatic expansion process b) The work done during the isobaric process c) The total work done. Take Cp of air = 1 kJ/kgK, and Cv of air = 0.714 kJ/kgK.
0.2 m3 of atmospheric air at 4 bar and 130°C is contained in a system. A reversible adiabatic expansion takes place till the pressure falls to 102 kPa. The air is then heated at constant pressure till the heat added reaches 72.5 kJ. Determine the following with an aid of a pV diagram: a) The work done during the adiabatic expansion process b) The work done during the isobaric process c) The total work done. Take Cp of air = 1 kJ/kgK, and Cv of air = 0.714 kJ/kgK.
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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1. 0.2 m3 of atmospheric air at 4 bar and 130°C is contained in a system. A reversible adiabatic expansion takes place till the pressure falls to 102 kPa. The air is then heated at constant pressure till the heat added reaches 72.5 kJ.
Determine the following with an aid of a pV diagram:
a) The work done during the adiabatic expansion process
b) The work done during the isobaric process
c) The total work done.
Take Cp of air = 1 kJ/kgK, and Cv of air = 0.714 kJ/kgK.
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