Consider a system of air with a molar volume of 0.02479 m³/mol which undergoes thermodynamics processes in a closed system. Initially, the air has a pressure of 1 x105 N/m at 25°C and it is compressed isothermally till the pressure increased to 5 x 105 N/m by two different mechanically reversible processes: (1) isobaric cooling followed by isochoric heating; (2) isochoric heating followed by isobaric cooling. The following heat capacities for air may be assumed independent of temperature: Cv =20.78 and Cp = 29.10 J/mol-K. Assume also for air that PV/T is a constant, regardless of the changes it undergoes.
Consider a system of air with a molar volume of 0.02479 m³/mol which undergoes thermodynamics processes in a closed system. Initially, the air has a pressure of 1 x105 N/m at 25°C and it is compressed isothermally till the pressure increased to 5 x 105 N/m by two different mechanically reversible processes: (1) isobaric cooling followed by isochoric heating; (2) isochoric heating followed by isobaric cooling. The following heat capacities for air may be assumed independent of temperature: Cv =20.78 and Cp = 29.10 J/mol-K. Assume also for air that PV/T is a constant, regardless of the changes it undergoes.
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:Consider a system of air with a molar volume of 0.02479 m³/mol which undergoes
thermodynamics processes in a closed system. Initially, the air has a pressure of 1 x105 N/m at
25°C and it is compressed isothermally till the pressure increased to 5 x 105 N/m by two different
mechanically reversible processes: (1) isobaric cooling followed by isochoric heating;
(2) isochoric heating followed by isobaric cooling. The following heat capacities for air may be
assumed independent of temperature: Cv =20.78 and Cp = 29.10 J/mol-K. Assume also for air
that PV/T is a constant, regardless of the changes it undergoes.
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