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7.15. Values of the specific internal energy of bromine at three conditions are listed here. State T(K) P(bar) V(L/mol) Û(kJ/mol) Liquid Vapor Vapor 300 0.310 0.0516 -28.24 300 0.310 79.94 0.000 340 1.33 20.92 1.38 (a) What reference state was used to generate the listed specific internal energies? (b) Calculate AÜ(kJ/mol) for a process in which bromine vapor at 300 K is condensed at constant pressure. Then calculate AĤ(kJ/mol) for the same process. (See Example 7.4-1.) Finally, calculate AH(kJ) for 5.00 mol of bromine undergoing the process. (c) Bromine vapor in a 5.00-liter container at 300 K and 0.205 bar is to be heated to 340 K. Calculate the heat (kJ) that must be transferred to the gas to achieve the desired temperature increase, assuming that Û is independent of pressure. (d) In reality, more heat than the amount calculated in Part (c) would have to be transferred to the container to raise the gas temperature by 40 K. State two reasons for this.

7.15. Values of the specific internal energy of bromine at three conditions are listed here. State T(K) P(bar) V(L/mol) Û(kJ/mol) Liquid Vapor Vapor 300 0.310 0.0516 -28.24 300 0.310 79.94 0.000 340 1.33 20.92 1.38 (a) What reference state was used to generate the listed specific internal energies? (b) Calculate AÜ(kJ/mol) for a process in which bromine vapor at 300 K is condensed at constant pressure. Then calculate AĤ(kJ/mol) for the same process. (See Example 7.4-1.) Finally, calculate AH(kJ) for 5.00 mol of bromine undergoing the process. (c) Bromine vapor in a 5.00-liter container at 300 K and 0.205 bar is to be heated to 340 K. Calculate the heat (kJ) that must be transferred to the gas to achieve the desired temperature increase, assuming that Û is independent of pressure. (d) In reality, more heat than the amount calculated in Part (c) would have to be transferred to the container to raise the gas temperature by 40 K. State two reasons for this.

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
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7.15. Values of the specific internal energy of bromine at three conditions are listed here. State T(K) P(bar) V(L/mol) Û(kJ/mol) Liquid Vapor Vapor 300 0.310 0.0516 -28.24 300 0.310 79.94 0.000 340 1.33 20.92 1.38 (a) What reference state was used to generate the listed specific internal energies? (b) Calculate AÜ(kJ/mol) for a process in which bromine vapor at 300 K is condensed at constant pressure. Then calculate AĤ(kJ/mol) for the same process. (See Example 7.4-1.) Finally, calculate AH(kJ) for 5.00 mol of bromine undergoing the process. (c) Bromine vapor in a 5.00-liter container at 300 K and 0.205 bar is to be heated to 340 K. Calculate the heat (kJ) that must be transferred to the gas to achieve the desired temperature increase, assuming that Û is independent of pressure. (d) In reality, more heat than the amount calculated in Part (c) would have to be transferred to the container to raise the gas temperature by 40 K. State two reasons for this.
Transcribed Image Text:7.15. Values of the specific internal energy of bromine at three conditions are listed here. State T(K) P(bar) V(L/mol) Û(kJ/mol) Liquid Vapor Vapor 300 0.310 0.0516 -28.24 300 0.310 79.94 0.000 340 1.33 20.92 1.38 (a) What reference state was used to generate the listed specific internal energies? (b) Calculate AÜ(kJ/mol) for a process in which bromine vapor at 300 K is condensed at constant pressure. Then calculate AĤ(kJ/mol) for the same process. (See Example 7.4-1.) Finally, calculate AH(kJ) for 5.00 mol of bromine undergoing the process. (c) Bromine vapor in a 5.00-liter container at 300 K and 0.205 bar is to be heated to 340 K. Calculate the heat (kJ) that must be transferred to the gas to achieve the desired temperature increase, assuming that Û is independent of pressure. (d) In reality, more heat than the amount calculated in Part (c) would have to be transferred to the container to raise the gas temperature by 40 K. State two reasons for this.
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