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: McGraw-Hill Education
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Textbook Question
Chapter 14, Problem 14.27P
Carbon black is produced by the decomposition of methane:
For equilibrium at 650°C and 1 bar,
(a) What is the gas-phase composition if pure methane enters the reactor, and what fraction of the methane decomposes?
(b) Repeat part (a) if the feed is an equimolar mixture of methane and nitrogen.
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9.4. A PID temperature controller is at steady state with an output pressure of 9 psig. The set
point and process temperature are initially the same. At time = 0, the set point is increased
at the rate of 0.5°F/min. The motion of the set point is in the direction of lower temperatures.
If the current settings are
PART 3 LINEAR CLOSED-LOOP SYSTEMS
Ke
=
2 psig/°F
Ti =
1.25 min
TD = 0.4 min
plot the output pressure versus time.
9.6. A PI controller has the transfer function
Determine the values of K, and T.
5s + 10
Ge
S
9.5. The input & to a PI controller is shown in Fig. P9-5. Plot the output of the controller if
Ke 2 and 0.50 min.
-
E
0.5
0
-0.5
0
FIGURE P9-5
2
4
t, min
Chapter 14 Solutions
Introduction to Chemical Engineering Thermodynamics
Ch. 14 - Prob. 14.1PCh. 14 - A system initially containing 2 mol C2H4 and 3 mol...Ch. 14 - A system formed initially of 2 mol CO2 , 5 mol H2...Ch. 14 - Consider the water-gas-shift reaction:...Ch. 14 - Rework Prob. 14.4 for a temperature of: (a) HOOK:...Ch. 14 - Use the method of equilibrium constants to verify...Ch. 14 - Prob. 14.7PCh. 14 - For ideal gases, exact mathematical expressions...Ch. 14 - For the ammonia synthesis reaction written:...Ch. 14 - Peter. Paul, and Mary, members of a thermodynamics...
Ch. 14 - The following reaction reaches equilibrium at...Ch. 14 - The following reaction reaches equilibrium at...Ch. 14 - The following reaction reaches equilibrium at...Ch. 14 - The following reaction, hydrogenation of styrene...Ch. 14 - The gas stream from a sulfur burner is composed of...Ch. 14 - Prob. 14.16PCh. 14 - Ethylene is produced by the dehydrogenation of...Ch. 14 - The production of 1,3-butadiene can be carried out...Ch. 14 - The production of 1,3-butadiene can be carried out...Ch. 14 - For the ammonia synthesis reaction, 12N2g+32H2NH3g...Ch. 14 - Prob. 14.21PCh. 14 - Prob. 14.22PCh. 14 - Ammonium chloride NH4Cls decomposes upon heating...Ch. 14 - A chemically reactive system contains the...Ch. 14 - The relative compositions of the pollutants NO and...Ch. 14 - Carbon black is produced by the decomposition of...Ch. 14 - Consider the reactions 12N2g+12O2gNOg12N2g+O2gNO2g...Ch. 14 - Oil refineries often have both H2S and SO2 to...Ch. 14 - Species N2O4 and NO2 as gases come to equilibrium...Ch. 14 - The following isomerization reaction occurs in the...Ch. 14 - Prob. 14.32PCh. 14 - The feed gas to a methanol synthesis reactor is...Ch. 14 - Prob. 14.34PCh. 14 - Consider the gas-phase isomerization reaction: ....Ch. 14 - A low-pressure, gas-phase isomerization reaction,...Ch. 14 - Set up the equations required for solution of Ex....Ch. 14 - Reaction-equilibrium calculations may be useful...Ch. 14 - Ethylene oxide as a vapor and water as liquid,...Ch. 14 - In chemical-reaction engineering, special measures...Ch. 14 - The following problems involving chemical-reaction...Ch. 14 - The following is an industrial-safety rule of...Ch. 14 - Prob. 14.43PCh. 14 - The standard heat of reaction A/f3 for gas-phase...Ch. 14 - Ethanol is produced from ethylene via the...Ch. 14 - A good source for formation data for compounds is...Ch. 14 - Reagent-grade, liquid-phase chemicals often...Ch. 14 - Cracking propane is a route to light olefin...Ch. 14 - Equilibrium at 425 K and 15 bar is established for...
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