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JEE Main Chemistry Class 11 Chemical Kinetics Part 2 Questions
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© examsnet.com
Question : 4
Total: 79
Consider the following single step reaction in gas phase at constant temperature.
2
A
(
g
)
+
B
(
g
)
⟶
C
(
g
)
The initial rate of the reaction is recorded as
r
1
when the reaction starts with
1.5
atm
pressure of
A
and
0.7
atm
pressure of B. After some time, the rate
r
2
is recorded when the pressure of
C
becomes
0.5
atm
. The ratio
r
1
:
r
2
is ______
×
10
−
1
. (Nearest integer)
[5 Apr 2024 Shift 2]
Your Answer:
Validate
Solution:
2
A
(
g
)
+
B
(
g
)
0.7
atm
∵
r
=
K
[
P
A
]
2
[
P
B
]
r
1
=
K
[
1.5
]
2
[
0.7
]
r
2
=
K
[
0.5
]
2
[
0.2
]
r
1
r
2
=
9
×
7
2
=
31.5
=
315
×
10
−
1
Ans. 315
© examsnet.com
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