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mol H20(l)/s ing questions, use for air a reference state of air at 25 °C and 1 atm and for water a reference state of liquid water at ume that changes in enthalpy due to pressure are insignificant. DA the specific enthalpy of air at 25 °C? kJ/mol =pecific enthalpy of air at 0.01 °C? kJ/mol =pecific enthalpy of water vapor at 25 °C? Note the units. kJ/mol -pecific enthalpy of water vapor at 0.01 °C? kJ/mol

mol H20(l)/s ing questions, use for air a reference state of air at 25 °C and 1 atm and for water a reference state of liquid water at ume that changes in enthalpy due to pressure are insignificant. DA the specific enthalpy of air at 25 °C? kJ/mol =pecific enthalpy of air at 0.01 °C? kJ/mol =pecific enthalpy of water vapor at 25 °C? Note the units. kJ/mol -pecific enthalpy of water vapor at 0.01 °C? kJ/mol

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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What is the flow rate of water condensing out of the AC unit? n2 = mol H20(1)/s In the remaining questions, use for air a reference state of air at 25 °C and 1 atm and for water a reference state of liquid water at 0.01 °C. Assume that changes in enthalpy due to pressure are insignificant. What is Ĥ 1DAthe specific enthalpy of air at 25 °C? ÊĤ 1DA= kJ/mol What is the specific enthalpy of air at 0.01 °C? ÊĤ 3DA= kJ/mol What is the specific enthalpy of water vapor at 25 °C? Note the units. ÂĤ \w(gF kJ/mol What is the specific enthalpy of water vapor at 0.01 °C? ÊÎ 3w(gF kJ/mol What is the specific enthalpy of liquid water at 0.01 °C? Ĥ 2w(\F kJ/mol What is the rate of heat added the AC unit? kJ/s
Transcribed Image Text:What is the flow rate of water condensing out of the AC unit? n2 = mol H20(1)/s In the remaining questions, use for air a reference state of air at 25 °C and 1 atm and for water a reference state of liquid water at 0.01 °C. Assume that changes in enthalpy due to pressure are insignificant. What is Ĥ 1DAthe specific enthalpy of air at 25 °C? ÊĤ 1DA= kJ/mol What is the specific enthalpy of air at 0.01 °C? ÊĤ 3DA= kJ/mol What is the specific enthalpy of water vapor at 25 °C? Note the units. ÂĤ \w(gF kJ/mol What is the specific enthalpy of water vapor at 0.01 °C? ÊÎ 3w(gF kJ/mol What is the specific enthalpy of liquid water at 0.01 °C? Ĥ 2w(\F kJ/mol What is the rate of heat added the AC unit? kJ/s
An air conditioning system of an indoor ice skating rink processes V = 300.0 L/s of air. The air inlet is at V L/s Air conditioning n, mol air/s unit T1 = 25 °C, Pi = 1 atm, and has a relative humidity of n, mol air/s T, °C rh = 95.0% (it is a very humid day). The air P, = 1 atm T, °C P, = 1 atm conditioner's outlet expels air at T3 = 0.01 °C and y, mol water/mol air P3 = 1 atm. You would like to determine how much rh % YaDA mol dry air/mol air water has condensed from the air and the rate of heat y. mol water/mol air removed from the air. Follow these steps. yIDA mol dry air/mol air i, mol liquid water/s T, = 0.01 °C What is the flow rate of air into the AC unit? n1 = mol/s What is the flow rate of water vapor into the AC unit? n1w= mol H2O(g)/s What is the flow rate of dry air into the AC unit? n1DA= mol D.A./s What is the flow rate of dry air out of the AC unit? 13DA= mol D.A./s What is the flow rate of water vapor out of the AC unit? n3w= mol H20(g)/s
Transcribed Image Text:An air conditioning system of an indoor ice skating rink processes V = 300.0 L/s of air. The air inlet is at V L/s Air conditioning n, mol air/s unit T1 = 25 °C, Pi = 1 atm, and has a relative humidity of n, mol air/s T, °C rh = 95.0% (it is a very humid day). The air P, = 1 atm T, °C P, = 1 atm conditioner's outlet expels air at T3 = 0.01 °C and y, mol water/mol air P3 = 1 atm. You would like to determine how much rh % YaDA mol dry air/mol air water has condensed from the air and the rate of heat y. mol water/mol air removed from the air. Follow these steps. yIDA mol dry air/mol air i, mol liquid water/s T, = 0.01 °C What is the flow rate of air into the AC unit? n1 = mol/s What is the flow rate of water vapor into the AC unit? n1w= mol H2O(g)/s What is the flow rate of dry air into the AC unit? n1DA= mol D.A./s What is the flow rate of dry air out of the AC unit? 13DA= mol D.A./s What is the flow rate of water vapor out of the AC unit? n3w= mol H20(g)/s
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