978-0134663890 Chapter 10 Part 3

subject Type Homework Help
subject Pages 13
subject Words 1004
subject Authors H. Scott Fogler

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page-pf1
10-40$
P10-17)(b))
)
$assume$CA$changes$very$slowly$w.r.t.$“a”$changing$
)
$
$
$
page-pf2
10-41$
P10-17)(c)$
Find$the$new$equation$for$a:$again$assuming$CB$changes$slowly$w.r.t.$“a”.$A$better$solutions$is$to$put$$
da
d
τ
=$kaC$B$into$the$Polymath$program$
$
$
page-pf3
10-42$
P10-17)(d))
$
$
page-pf4
10-43$
P10-17)(e))
$
$
$$$$$$$$Not$a$good$solution.$Just$put$
da
dW =kdCAa
Us
$into$Polymath$program.$$
$
$
page-pf5
P10-17)(e))Continued$
$
page-pf6
P10-18)(a))Continued$
Activity$is$zero$for$W$>$2.5$kg,$so$the$catalyst$weight$only$goes$to$the$effective$weight.$
$
( ) ( )
2
2
0
1 0.2 0.2 2.5
2.5 0.25
ADe
e
kC k W
XW
⎡⎤
⎡⎤
===
⎢⎥
⎢⎥
$
page-pf7
P10-18)(g))
S
UU=
$
D
S
k
da
dW U
=
$ $ when$
t
WW=
,$
1a=
$
D
S
kW
aC
U
=+
$
1Dt
S
kW C
U
=+
$
1
De Dt
SS
kW kW
a
UU
=+
$
Now$find$We.$
01
De Dt
SS
kW kW
UU
=+
$
.5 .2*5
11
.2 .5
SDt
e
DS
UkW
W
kU
⎡⎤
⎡⎤
==
⎢⎥
⎢⎥
⎣⎦
⎣⎦
$
2.5
e
W=
$
( )
2
0
0
1
1A
Dt
S
kC X
kW
dX W
dW U v
⎛⎞
=+
⎜⎟
⎝⎠
$
0
0
1
1
ADt
S
kC k W
XWdW
Xv U
⎛⎞
=+
⎜⎟
⎝⎠
$
( )
22
0
0
1
12
ADtte
te
S
kC k W W W
XWW
Xv U
⎡⎤
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=+
⎢⎥
⎜⎟
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$
( )
0.2 * 5 25 6.25
0.2 5 2.5 1
X
⎡⎤
⎛⎞
=+
⎜⎟
⎢⎥
$
page-pf8
10-47$
P10-18)(h))Continued$
To$maximize$profit,$a$maximum$in$profit$is$reached$and$so$we$set$the$differential$of$profit$equal$to$0.$
0
$0160 10
A
SS
ddX
F
dU dU
==
)
2
2
2
D
SS
kk W
dX
dU U
=
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2
02
160 10
2
D
A
S
kk W
F
U=
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22
0
8AD S
FkkW U=
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( )( )( )( )
2
0
8 8 2 .2 .2 25
SAD
UFkkW==
)
4
min
S
kg
U=
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$
)
P10-19)(a))
)
$
page-pf9
10-48$
P10-19)(b))
)
$
$
P10-19)(c))
$
page-pfa
10-49$
P10-19)(d))
$
$
$
$
P10-19)(e))
$
page-pfb
10-50$
P10-19)(e))Continued$
$
)
P10-20)(a))
)
)
P10-20)(b))
)
)
P10-20)(c))
)
page-pfc
10-51$
P10-20)(c))Continued$
$
$
$
P10-20)(d))
$
page-pfd
10-52$
P10-20)(d))Continued$
$
$
$
)
page-pfe
10-53$
P10-20)(e))
)
$
)
P10-21)(a))
$
page-pff
10-54$
P10-21)(a))Continued$
$
$
P10-21)(b))
$
$
page-pf10
10-55$
P10-21)(b))Continued$
$
$
)
P10-22)(a))
)
$
$ $
page-pf11
10-56$
P10-22)(a)$continued$
$
$
$
page-pf12
10-57$
P10-22)(b))
$
$
$
$
)
P10-23)
$
$
page-pf13
10-58$
P10-23)continued$
$
$
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)
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