martin (mm53382) – H14: Kinetics 1 – Mccord – (52445)
1
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16
questions.
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before answering.
001
10.0 points
The rate of the reaction
2 O
3
→
3 O
2
is equal to
1.
+
1
2
Δ[O
3
]
Δ
t
.
2.

1
2
Δ[O
3
]
Δ
t
.
3.

Δ[O
3
]
Δ
t
.
4.

1
3
Δ[O
2
]
Δ
t
.
5.

Δ[O
2
]
Δ
t
.
002
10.0 points
When the reaction
3 NO(g)
→
N
2
O(g) + NO
2
(g)
is proceeding under conditions such that 0.015
mol/L of N
2
O is being formed each second,
the rate of the overall reaction is
?
and
the rate of change for NO is
?
.
1.
none of the other answers is correct
2.
0.015 M
·
s

1
; +0.045 M
·
s

1
3.
0.030 M
·
s

1
;

0.005 M
·
s

1
4.
0.015 M
·
s

1
;

0.005 M
·
s

1
5.
0.015 M
·
s

1
;

0.045 M
·
s

1
003
10.0 points
Consider the irreversible reaction
A + 2 B
→
3 C
.
Which of the following correctly expresses
the rate of change of [B] ?
1.
Δ[B]
Δ
t
= +2 (rate of rxn)
2.
Δ[B]
Δ
t
= +
1
2
(rate of rxn)
3.
Δ[B]
Δ
t
=

1
2
(rate of rxn)
4.
Δ[B]
Δ
t
=

2 (rate of rxn)
5.
Δ[B]
Δ
t
= +(rate of rxn)
6.
Δ[B]
Δ
t
=

(rate of rxn)
004
10.0 points
Suppose a compound is involved in three
different reactions denoted
R
1
,
R
2
, and
R
3
.
Tripling the concentration of this reactant in
all three reactions causes the rates of reaction
to increase by factors of 3, 9, and 1, respec
tively. What is the order of each reaction with
respect to this reactant?
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 Spring '10
 McCord
 Chemistry, Reaction, Kinetics, Chemical reaction, Rate equation

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