Fundamentals of Chemical Engineering Thermodynamics (MindTap Course List)
15th Edition
ISBN: 9781285968360
Author: DAHM
Publisher: Cengage
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Question
Chapter 1.7, Problem 23P
Interpretation Introduction
Interpretation:
The vertical velocity and kinetic energy of the dropped object is to be determined when it hits the ground.
Concept Introduction:
The kinetic energy
Here, mass of object is
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Problem 2. For an irreversible liquid phase reaction A -> B, the reaction rate is of the first
order with respect to the reactant concentration C_A. this reaction is performed in a
cascade of two identical CSTRs at 100 degrees Celsius. (same reactor size and
isothermal). The inlet concentration of A of the first CSTR is 2mol/L. The outlet
concentration of A of the 2nd CSTR is 0.5 mol/L. the inlet flow rate of the 1st reactor is 100
L/h. and the feed temperature is 20 degrees Celsius. The average heat capacity of the
reactant/product/solvent mixture is a constant: 2J/g*K, the density of the mixture is a
constant: 1 kg/L. The heat of reaction is 50 kJ/mol (exothermic). The reaction rate constant
at 100 degrees Celsius is 0.5/h.
(a) Determine the outlet concentration of A of the first CSTR
(b) What is the heat transfer requirement for the first CSTR?
(c) if this reaction is performed in a plug-flow reactor, what is the size of plug-flow
reactor required for achieving the same conversion…
The energy release (Q_g) and energy loss (Q_r) curves of an irreversible oxidation reaction
are shown below. Q_r curves can be shifted by adjusting the feed temperature.
Q,& QE
E
Qg
(a) Are these points of intersection
between energy release and energy
loss curves stable operating
conditions?
Point of
Intersection
A
Stable or Unstable
B
A
D
T
(b) Which point represents the ignition condition?
B
с
D
E
F
G
Chapter 1 Solutions
Fundamentals of Chemical Engineering Thermodynamics (MindTap Course List)
Ch. 1.6 - Prob. 1ECh. 1.6 - Prob. 2ECh. 1.6 - Prob. 3ECh. 1.6 - Prob. 4ECh. 1.6 - Prob. 5ECh. 1.6 - Prob. 6ECh. 1.6 - Prob. 7ECh. 1.6 - Prob. 8ECh. 1.6 - Prob. 9ECh. 1.6 - Prob. 10E
Ch. 1.6 - Prob. 11ECh. 1.6 - Prob. 12ECh. 1.6 - Prob. 13ECh. 1.6 - Prob. 14ECh. 1.6 - Prob. 15ECh. 1.7 - Prob. 16PCh. 1.7 - Prob. 17PCh. 1.7 - Prob. 18PCh. 1.7 - Prob. 19PCh. 1.7 - Prob. 20PCh. 1.7 - Prob. 21PCh. 1.7 - Prob. 22PCh. 1.7 - Prob. 23PCh. 1.7 - Prob. 24PCh. 1.7 - Prob. 25PCh. 1.7 - Prob. 26PCh. 1.7 - Prob. 27PCh. 1.7 - Prob. 28PCh. 1.7 - Prob. 29PCh. 1.7 - Prob. 30PCh. 1.7 - Prob. 31PCh. 1.7 - Prob. 32P
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