Version 136 – Quiz 6 – Laude – (52455)
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d
[A]
adt
=
k
[A] = [A]
0

akt
t
1
/
2
=
[A]
0
2
ak

d
[A]
adt
=
k
[A]
ln [A] = ln [A]
0

akt
t
1
/
2
=
ln 2
ak

d
[A]
adt
=
k
[A]
2
1
[A]
=
1
[A]
0
+
akt
t
1
/
2
=
1
ak
[A]
0
ln
a
b
= ln
a

ln
b
rate =
k
[A]
x
[B]
y
=

1
a
×
d
[
A
]
dt
k
=
A
exp
parenleftbigg

E
a
RT
parenrightbigg
ln
k
2
k
1
=
E
a
R
parenleftbigg
1
T
1

1
T
2
parenrightbigg
001
5.0 points
Express the rate of the following reaction in
terms of the [NaOH].
C
2
H
4
Br
2
+2 NaOH
→
C
2
H
2
+2 NaBr+2 H
2
O
1.
rate =
Δ[NaOH]
Δ
t
2.
rate =
Δ[NaOH]
2Δ
t
3.
rate =

Δ[NaOH]
2Δ
t
correct
4.
rate =

2Δ[NaOH]
Δ
t
5.
rate =
2Δ[NaOH]
Δ
t
Explanation:
rate =

[C
2
H
4
Br
2
]
Δ
t
=

[NaOH]
2Δ
t
=
[C
2
H
2
]
Δ
t
=
[NaBr]
2Δ
t
=
[H
2
O]
2Δ
t
002
5.0 points
Consider the combined Arrhenius equation.
Which of the following correctly expresses
T
1
in terms of the other variables?
1.
T
1
=
parenleftbigg
ln(
k
2
/k
1
)
E
a
/R

1
T
2
parenrightbigg

1
2.
T
1
=
parenleftbigg
E
a
/R
ln(
k
2
/k
1
)
+
T
2
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 Spring '07
 Holcombe
 Reaction, Laude, Ea /R, Ea /R T2

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