Elementary Principles Of Chemical Processes
4th Edition
ISBN: 9781119254003
Author: Richard M. Felder And Ronald W. Rousseau
Publisher: WILEY
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Question
Chapter 9, Problem 9.73P
Interpretation Introduction
(a)
Interpretation:
Calculate the Percentage of excess air feed to reactor?
Concept introduction:
CO is burned with excess air at 1 atm.
Reactant enters at 25°C and leaves at 1500 °C.
One carbon oxide molecule plus half oxygen molecule will give one carbon dioxide molecule.
Using this concept, we will find out excess air feed to reactor.
Interpretation Introduction
(b)
Interpretation:
Change in adiabatic flame temperature if % of excess air increased.
Concept introduction:
Adiabatic flame temperature is inversely proportional to air flow rate, that is,if the percentage excess were increased, the adiabatic flame temperature would decrease.
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Students have asked these similar questions
For each set of measurements below, calculate the Grubbs statistic, G, look up the appropriate
critical value of G from Table 4.6, and determine whether the Grubbs test supports discarding the
first value in the list at the 95% level of confidence.
a) 106.0, 165.0, 167.5, 170.5, 163.5, 170.7
(Geale -2.028; Gerit 1.822; yes, the Grubbs test supports discarding 106.0)
b) 214.8, 263.0, 229.9, 236.9, 221.8, 230.8, 241.1
c) 357.0, 309.3, 304.9, 314.8, 305.8, 295.3, 284.7, 299.5
TABLE 4-6
Critical values of G
for rejection of outlier
Number of
observations
otsulsve os
Tenos
nagsibarito G to buboxy
(95% confidence)
456
1.463
1.672
1.822
7
1.938
8 upa
2.032
9
2.110
10
2.176
- 1 12 15 20
11
2.234
2.285
2.409
2.557
#1 A irreversible isothermal gas-phase isomerization reaction is given as: AB. This reaction is
conducted in a 400L batch reactor and 100 mol of A (NAD = 100 mol) is charged into this reactor.
The rate of reaction is determined as a function of the conversion of reactant A and the results
are given below. The temperature was constant at 500K and the total pressure was constant at
830 kPa. The entering number of moles of species A is 100 mol. Calculate the time necessary to
achieve 80% conversion.
0
0.1
0.2
0.4
-TA (mol/m³.s)
0.45
0.37
0.3
0.195
0.6
0.113
0.7
0.079
0.8
0.05
#3 A irreversible isothermal liquid-phase reaction is given as: A → B is conducted in continuous
flow systems. The rate of reaction is determined as a function of the conversion of reactant A
and the results are given below. The temperature was constant at 500K. The entering molar
flow rate of A is 0.4 mol/min.
a) If this reaction is conducted in two CSTRS in series. Calculate the required reactor volume of
each CSTRS if conversion X₁ = 0.4 and conversion X2 = 0.8.
b) If this reaction is conducted in two PFRS in series. Calculate the required reactor volume of
each PFRS if conversion X₁ = 0.4 and conversion X2 = 0.8.
c) If this reaction is conducted in a PFR followed by a CSTR. Calculate the required reactor
volume of PFR if conversion X₁ = 0.4 and of CSTR if conversion X2 = 0.8.
X
-A (mol/L.min)
0
0.1
0.2
0.4
0.6
0.7
0.8
0.45
0.37
0.3 0.195
0.113
0.079
0.05
Chapter 9 Solutions
Elementary Principles Of Chemical Processes
Ch. 9 - The standard heat of the reaction...Ch. 9 - Prob. 9.2PCh. 9 - Prob. 9.3PCh. 9 - The standard heat of the reaction...Ch. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - Prob. 9.8PCh. 9 - The standard heat of combustion of gaseous ethane...Ch. 9 - The standard heat of combustion (AH°) of liquid...
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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