Elementary Principles of Chemical Processes
Elementary Principles of Chemical Processes
4th Edition
ISBN: 9780470616291
Author: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher: WILEY
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Chapter 9, Problem 9.79P
Interpretation Introduction

(a)

Interpretation:

The mole fraction of product composition to be calculated. Also, the percent conversion of CO and H2 is to be determined.

Concept introduction:

For a single reaction system, the final moles of each of the components present, can be estimated by the equation:

ni=nio+viξ ...... (1)

Here, ni is the final moles of the component i, nio is the initial moles of the component i, vi is the stoichiometric coefficient of the component i in the reaction and ξ is the extent of the reaction. vi is taken as negative for reactants and positive for products.

Mole fraction (yi) of any component is given by:

yi=nini ...... (2)

Here, ni represents the moles of the component, whereas i and ni represent the total moles of all the components present in the mixture.

Interpretation Introduction

(b)

Interpretation:

By neglecting the effect of pressure on enthalpies, the amount of heat added or removed from the process should be determined.

Concept introduction:

The amount of heat transferred is,

Q=outnH^iinnH^i

Here,

outnH^i is the heat of formation of product.

innH^i is the heat of formation of reactant.

The enthalpies of reactants and products depends on the heat capacity and temperature.

Interpretation Introduction

(c)

Interpretation:

The extent of reaction along with the amount of heat removed with the values of temperatures ranging from 200Cand400oC with increments of 50C should be determined. Also, the value of adiabatic reaction temperature should be calculated.

Concept introduction:

The amount of heat transferred is,

Q=outnH^iinnH^i

Here,

outnH^i is the heat of formation of product.

innH^i is the heat of formation of reactant.

The enthalpies of reactants and products depends on the heat capacity and temperature.

Interpretation Introduction

(d)

Interpretation:

The effect of pressure on the reaction with the help of extent of conversion and rate of heat transfer at 1 MPa and 15 MPa should be determined.

Concept introduction:

For a single reaction system, the final moles of each of the components present, can be estimated by the equation:

ni=nio+viξ ...... (1)

Here, ni represents the final moles of the component i, nio represents the initial moles of the component i, vi is the stoichiometric coefficient of the component i in the reaction and ξ is the extent of the reaction. vi is taken as negative for reactants and positive for products.

Mole fraction (yi) of any component is given by:

yi=nini ...... (2)

Here, ni represents the moles of component i and ni represents the total moles of all the components present in the mixture.

Interpretation Introduction

(e)

Interpretation:

The purpose of selecting initial condition of 250C and 7.5MPa for the results obtained from part (c) and (d) should be explained.

Concept introduction:

Adiabatic flame temperature helps to determine the completion of process. Adiabatic flame temperature occurs in two phases that is constant volume process and constant pressure process.

This temperature is applicable when the process takes place in an adiabatic condition which means no exchange of heat with the surrounding.

For a single reaction system, the final moles of each of the components present, can be estimated by the equation:

ni=nio+viξ ...... (1)

Here, ni represents the final moles of the component i, nio represents the initial moles of the component i, vi is the stoichiometric coefficient of the component i in the reaction and ξ is the extent of the reaction. vi is taken as negative for reactants and positive for products.

Mole fraction (yi) of any component is given by:

yi=nini ...... (2)

Here, ni represents the moles of component i and ni represents the total moles of all the components present in the mixture.

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Chapter 9 Solutions

Elementary Principles of Chemical Processes

Ch. 9 - Prob. 9.11PCh. 9 - Prob. 9.12PCh. 9 - In the production of many microelectronic devices,...Ch. 9 - Prob. 9.14PCh. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Carbon monoxide at 25°C and steam at 150°C are fed...Ch. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Ethyl alcohol (ethanol) can be produced by the...Ch. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24PCh. 9 - Formaldehyde is produced commercially by the...Ch. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - A gas mixture containing 85 mole% methane and the...Ch. 9 - Ethylene oxide is produced by the catalytic...Ch. 9 - Cumene (C6H5C3H7) is produced by reacting benzene...Ch. 9 - Ethylbenzene is converted to styrene in the...Ch. 9 - Prob. 9.34PCh. 9 - Prob. 9.35PCh. 9 - Prob. 9.36PCh. 9 - Prob. 9.37PCh. 9 - Coke can be converted into CO—a fuel gas—in the...Ch. 9 - Prob. 9.39PCh. 9 - Prob. 9.40PCh. 9 - Prob. 9.41PCh. 9 - The equilibrium constant for the ethane...Ch. 9 - You are checking the performance of a reactor in...Ch. 9 - Hydrogen is produced in the steam reforming of...Ch. 9 - Prob. 9.45PCh. 9 - Five cubic meters of a 1.00-molar aqueous sulfuric...Ch. 9 - Prob. 9.47PCh. 9 - Prob. 9.48PCh. 9 - Prob. 9.49PCh. 9 - Calcium chloride is a salt used in a number of...Ch. 9 - A dilute aqueous solution of sulfuric acid at 25°C...Ch. 9 - A 2.00 mole% sulfuric acid solution is neutralized...Ch. 9 - A 12.0-molar solution of sodium hydroxide (SG =...Ch. 9 - Citric acid (C6H8O7) is used in the preparation of...Ch. 9 - Ammonia scrubbing is one of many processes for...Ch. 9 - Various uses for nitric acid are given in Problem...Ch. 9 - A natural gas is analyzed and found to consist of...Ch. 9 - Prob. 9.58PCh. 9 - A fuel gas is known to contain methane, ethane,...Ch. 9 - A fuel gas containing 85.0 mole% methane and the...Ch. 9 - A mixture of air and a fine spray of gasoline at...Ch. 9 - The heating value of a fuel oil is to be measured...Ch. 9 - Methanol vapor is burned with excess air in a...Ch. 9 - Methane at 25°C is burned in a boiler furnace with...Ch. 9 - Methane is burned completely with 40% excess air....Ch. 9 - A gaseous fuel containing methane and ethane is...Ch. 9 - A coal contains 73.0 wt% C, 4.7% H (not including...Ch. 9 - A mixture of methane, ethane, and argon at 25°C is...Ch. 9 - Prob. 9.69PCh. 9 - Prob. 9.70PCh. 9 - Prob. 9.71PCh. 9 - A bituminous coal is burned with air in a boiler...Ch. 9 - Prob. 9.73PCh. 9 - A natural gas containing 82.0 mole% CH4and the...Ch. 9 - Prob. 9.75PCh. 9 - Liquid n-pentane at 25°C is burned with 30% excess...Ch. 9 - Methane is burned with 25% excess air in a...Ch. 9 - Methane and 30% excess air are to be fed to a...Ch. 9 - Prob. 9.79PCh. 9 - In Problem 9.79, the synthesis of methanol from...Ch. 9 - Natural gas that contains methane, ethane, and...Ch. 9 - Prob. 9.82PCh. 9 - The wastewater treatment plant at the Ossabaw...
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