An inventor has devised a complicated nonflow process in which 1 mol of air is the working fluid. The net effects of the process are claimed to have a change in state of the air from 270°C and 3 bar to 90°C and 1 bar: the production of 2 kJ of work; and the transfer of an undisclosed amount of heat to a heat reservoir at 27°C. Determine whether the claimed performance of the process is consistent with the second law. Assume that air is an ideal gas for which Cp = (7/2)R. *
An inventor has devised a complicated nonflow process in which 1 mol of air is the working fluid. The net effects of the process are claimed to have a change in state of the air from 270°C and 3 bar to 90°C and 1 bar: the production of 2 kJ of work; and the transfer of an undisclosed amount of heat to a heat reservoir at 27°C. Determine whether the claimed performance of the process is consistent with the second law. Assume that air is an ideal gas for which Cp = (7/2)R. *
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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Transcribed Image Text:An inventor has devised a complicated nonflow process in which 1 mol of air is
the working fluid. The net effects of the process are claimed to have a change in
state of the air from 270°C and 3 bar to 90°C and 1 bar; the production of 2 kJ of
work; and the transfer of an undisclosed amount of heat to a heat reservoir at
27°C. Determine whether the claimed performance of the process is consistent
with the second law. Assume that air is an ideal gas for which Cp = (7/2)R. *
DONE
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