Mass Balances, Mole Balances and Partial Pressures Air and carbon dioxide (CO2) are mixed together in a simple “T” pipe. Air at 3 atm pressure and 30 oC enters one end of the “T” at a flow rate of 2 kmol/minute. CO2 at 3 atm pressure and 30 oC enters the other end of the “T” at a flow rate of 4 kmol/min. The two gas streams exit from the middle of the “T” at 30 oC and 3 atm. The molecular weight of CO2 is 44.01. No reactions take place between air and CO2. a.Sketch the problem and add clear labels to it b.Calculate the concentration of CO2entering in kg/m3c.Calculate the concentration of N2 entering in lbmol/ft3. Air can be assumed to be 79% N2and 21% O2 (mole basis). d.Calculate the concentration of CO2 in the exiting stream in mol/cm

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Mass Balances, Mole Balances and Partial Pressures Air and carbon dioxide (CO2) are mixed together in a simple “T” pipe. Air at 3 atm pressure and 30 oC enters one end of the “T” at a flow rate of 2 kmol/minute. CO2 at 3 atm pressure and 30 oC enters the other end of the “T” at a flow rate of 4 kmol/min. The two gas streams exit from the middle of the “T” at 30 oC and 3 atm. The molecular weight of CO2 is 44.01. No reactions take place between air and CO2. a.Sketch the problem and add clear labels to it b.Calculate the concentration of CO2entering in kg/m3c.Calculate the concentration of N2 entering in lbmol/ft3. Air can be assumed to be 79% N2and 21% O2 (mole basis). d.Calculate the concentration of CO2 in the exiting stream in mol/cm

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