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Q3/ One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 120°C and 15 bar by three different mechanically reversible processes: (a)The gas is first heated at constant volume until its temp. Is 120°C. Then it is compressed isothermally until is pressure is 15 bar. (b) The gas is first heated at constant pressure until its temp. Is 120°C, then it is compressed isothermally to 15 bar. (c) The gas is first compressed isothermally to 15 bar; then it is heated t constant pressure to 120°C. Calculate Q, W,AH Au in each case Take Cp3()R and Cv=R.

Q3/ One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 120°C and 15 bar by three different mechanically reversible processes: (a)The gas is first heated at constant volume until its temp. Is 120°C. Then it is compressed isothermally until is pressure is 15 bar. (b) The gas is first heated at constant pressure until its temp. Is 120°C, then it is compressed isothermally to 15 bar. (c) The gas is first compressed isothermally to 15 bar; then it is heated t constant pressure to 120°C. Calculate Q, W,AH Au in each case Take Cp3()R and Cv=R.

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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Q3/ One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 120°C and 15 bar by three different mechanically reversible processes: (a)The gas is first heated at constant volume until its temp. Is 120°C. Then it is compressed isothermally until is pressure is 15 bar. (b) The gas is first heated at constant pressure until its temp. Is 120°C, then it is compressed isothermally to 15 bar. (c) The gas is first compressed isothermally to 15 bar; then it is heated t constant pressure to 120°C. Calculate Q. W,AH Au in each case Take Cp=(R and Cv= R.
Transcribed Image Text:Q3/ One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 120°C and 15 bar by three different mechanically reversible processes: (a)The gas is first heated at constant volume until its temp. Is 120°C. Then it is compressed isothermally until is pressure is 15 bar. (b) The gas is first heated at constant pressure until its temp. Is 120°C, then it is compressed isothermally to 15 bar. (c) The gas is first compressed isothermally to 15 bar; then it is heated t constant pressure to 120°C. Calculate Q. W,AH Au in each case Take Cp=(R and Cv= R.
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