propane is combined with 50% excess air in a mixer before being fed to a furnace. The propane (C3H5) enter the mixer at 25 degrees celsius at a rate of 300Kg/h and the air enters the mixer at 500 degrees celsius. Heat is lost form the mixer to the surroundeings at a rate of 8.5KW. Given MW(propane= 4.4; Cp(Propane)=0.068032KJ/mol. degrees celsius; Cp(air) =0.0289KJ/mol degrees celsius. Use table 8 for calculation. a. Calculate the molar flow of air that enters the mixer. H(kJ/mol)Reference state: Gas, Pref = 1 atm, Tref = 25°CTAir 0₂ N₂-0.72 -0.73-0.730.00 0.00 0.002.19 2.24 2.195.31 5.13300 8.17 8.47 8.12 7.96 8.17 11.58 9.57025100200H₂со CO2 H2O-0.72 -0.73 -0.92 -0.840.000.002.16 2.19 2.905.155005.065.160.007.080.002.546.01400 11.24 11.72 11.15 10.89 11.25 16.35 13.2314.37 15.03 14.24 13.83 14.38 21.34 17.01600 17.55 18.41 17.39 16.81 17.57 26.53 20.91700 20.80 21.86 20.59 19.81 20.82 31.88 24.92800 24.10 25.35 23.86 22.85 24.13 37.36 29.05900 27.46 28.89 27.19 25.93 27.49 42.94 33.321000 30.86 32.47 30.56 29.04 30.91 48.60 37.691100 34.31 36.07 33.99 32.19 34.37 54.33 42.181200 37.81 39.70 37.46 35.39 37.87 60.14 46.781300 41.34 43.38 40.97 38.62 41.40 65.98 51.471400 44.89 47.07 44.51 41.90 44.95 71.89 56.251500 48.45 50.77 48.06 45.22 48.51 77.84 61.09

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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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propane is combined with 50% excess air in a mixer before being fed to a furnace. The propane (C3H5) enter the mixer at 25 degrees celsius at a rate of 300Kg/h and the air enters the mixer at 500 degrees celsius. Heat is lost form the mixer to the surroundeings at a rate of 8.5KW. Given MW(propane= 4.4; Cp(Propane)=0.068032KJ/mol. degrees celsius; Cp(air) =0.0289KJ/mol degrees celsius. Use table 8 for calculation.

a. Calculate the molar flow of air that enters the mixer.