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49. Air initially at 95 kPaa and 310 K, occupies 0.75 m³. It is compressed isothermally until the volume is halved and compressed at constant pressure until the volume decreases to one quarter the initial volume. Draw the PV diagram and determine the total work and the total heat for the two processes.

49. Air initially at 95 kPaa and 310 K, occupies 0.75 m³. It is compressed isothermally until the volume is halved and compressed at constant pressure until the volume decreases to one quarter the initial volume. Draw the PV diagram and determine the total work and the total heat for the two processes.

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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Please answer #49 only Topic: Gas Laws (please complete solutions with explanation if ever)
BTU/lb-R. What are a) T2, b) P2, c) AH, d) W and e) Draw the PV diagram. 49. Air initially at 95 kPaa and 310 K, occupies 0.75 m³. It is compressed isothermally until the volume is halved and compressed at constant pressure until the volume decreases to one quarter the initial volume. Draw the PV diagram and determine the total work and the total heat for the two processes. 50. An ideal gas with a molecular weight of 6.5 kg/kgmol is compressed in reversible manner from 720 kPaa and 377 K to a final specific volume of 0.54 m³/kg according to P = 250 + 80v + 120v², where P is the pressure ein kPaa and v is the specific volume in m³/kg. If Cv = 0.837 kJ/kg-K, determine, a) the initial volume, b) the work done, c) the heat transferred, d) the final temperature and e) draw the PV diagram. 51. Two pound of an ideal gas undergoes an isentropic process from 65.3 psig and a volume of 0.8 ft³ to a final volume of 2.8 ft³. If Cp=0.273 BTU/lb-R and Cv = 0.093 BTU/lb-R. What are a) T2, b) P2, c) AH, d) W and e) Draw the PV diagram 52. Air initially at 235 kPaa and 280 K, occupies 0.65 m³. It is compressed isothermally until the volume is halved and compressed at constant pressure until
Transcribed Image Text:BTU/lb-R. What are a) T2, b) P2, c) AH, d) W and e) Draw the PV diagram. 49. Air initially at 95 kPaa and 310 K, occupies 0.75 m³. It is compressed isothermally until the volume is halved and compressed at constant pressure until the volume decreases to one quarter the initial volume. Draw the PV diagram and determine the total work and the total heat for the two processes. 50. An ideal gas with a molecular weight of 6.5 kg/kgmol is compressed in reversible manner from 720 kPaa and 377 K to a final specific volume of 0.54 m³/kg according to P = 250 + 80v + 120v², where P is the pressure ein kPaa and v is the specific volume in m³/kg. If Cv = 0.837 kJ/kg-K, determine, a) the initial volume, b) the work done, c) the heat transferred, d) the final temperature and e) draw the PV diagram. 51. Two pound of an ideal gas undergoes an isentropic process from 65.3 psig and a volume of 0.8 ft³ to a final volume of 2.8 ft³. If Cp=0.273 BTU/lb-R and Cv = 0.093 BTU/lb-R. What are a) T2, b) P2, c) AH, d) W and e) Draw the PV diagram 52. Air initially at 235 kPaa and 280 K, occupies 0.65 m³. It is compressed isothermally until the volume is halved and compressed at constant pressure until
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