Professor Modyn's steady state flow reactor is now fed acetylene (C₂H₂) at 2.000 mol/s. The acetylene is combusted with45.00% excess dry air to form CO2 and H2O. Limitations within the reactor only allow 82.00% of the acetylene to react. Boththe acetylene and air enter the reactor at 25 °C, and the products leave the reactor at 1027.00 °C.Potentially useful properties are listed in the following table.SpeciesAhr(298 K), kJ/molCp, kJ/kmol-K0203.5RN₂03.5RC₂H₂-226.734RCO2H₂O(g)-393.54R-241.825RDetermine the exiting flow rate of 02.5.945exiting flow rate:Determine the heat interaction term.-2085.37mol/sheat interaction term:kW

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Answered: Professor Modyn's steady state flow…

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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(8) (a) Carbon monoxide at 150°C is burned under atmospheric pressure with dry air at 550°C is 95% excess of that theoretically required. The product of the combustion leaves the reaction chamber at 1000°C. Assuming complete combustion calculate the heat evolved in the reaction chamber in kcal/kmol of carbon monoxide burnt. The heat of combustion of carbon monoxide is - 67640 kcal/kmol. Given, Cp(co)= 7.0 kcal/kmol.°C Gp(N;)= 7.5 kcal/kmol.°C Gp(co;)= 11.8 kcal/kmol.°C Cp(02)= 7.5 kcal/kmol.°C Cp(air)= 7.25 kcal/kmol. °C
A single effect evaporator is used to concentrate 10 000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the Evaporator at 20 ° C. The evaporator is operated on Steam (80% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it a. Steam demand rate = ..... kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = .... (kg of water evaporated / kg of steam)
A single effect evaporator was used to concentrate 8000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the Evaporator at 20 ° C. The evaporator is operated on Steam (85% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it a. Steam demand rate = kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = (kg of water evaporates / kg of steam)
An equimolar mixture of nitrogen and acetylene enters a steady-flow reactor at 25°C and atmospheric pressure. The only reaction occurring is: N2(g) + C2H2 → 2HCN(g)N2(g) + C2H2 → 2HCN(g) The product gases leave the reactor at 600°C and contain 24.2 mol-% HCN. How much heat is supplied to the reactor per mole of product gas? (Use the tables for standard enthalpies and gibbs energies of formation and the heat capacities of gases in the ideal gas state.)
Please include your diagram, mass balances, and full work. Thank you.
A single effect evaporator was used to concentrate 8000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the Evaporator at 20 ° C. The evaporator is operated on Steam (85% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 80 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it (a) Steam demand rate = Answerkg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = Answer(kg of water evaporated / kg of steam)
At approximately atmospheric pressure, methane gas is burned completely with 30% excess air. Both the air and methane enter the furnace at 30 °C saturated with water vapor, and the flue gases leave the furnace at 1500 °C. Calculate how much heat is lost from the furnace per mole of methane. In your solution, show analytically all calculations, including the analytical derivation of the number of moles of water vapor entering the furnace. Use steam tables to determine Psat, and compare your answer with the answer you would obtain using Antoine’s and Wagner’s equations. For the latter, you can determine A, B, C, D as in ** above.
The fuel in the form of biogas (65%-mol CH4 and 35%-mol CO2) is burned in a furnace. In order for combustion to take place stoichiometrically, calculate the air to fuel ratio (vol/vol) from this problem!
A single effect evaporator was used to concentrate 8000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 15 ° C. The evaporator is operated on Steam (85% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it (a) Steam demand rate = kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = (kg of water evaporates / kg of steam)

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