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JEE Main Chemistry Class 11 Chemical Thermodynamics Part 2 Questions
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© examsnet.com
Question : 34
Total: 88
A
(
g
)
⇌
2
B
(
g
)
+
C
(
g
)
For the given reaction, if the initial pressure is
450
mmHg
and the pressure at time
t
is
720
mmHg
at a constant temperature
T
and constant volume
V
. The fraction of
A
(
g
)
decomposed under these conditions is
x
×
10
−
1
. The value of
x
is _________ (nearest integer)
[10-Apr-2023 shift 2]
Your Answer:
Validate
Solution:
A
(
g
)
⇌
2
B
(
g
)
+
C
(
g
)
t
=
0
450
time
450
−
x
2
x
P
T
=
P
A
+
P
B
+
P
C
720
=
450
−
x
+
2
x
+
x
2
x
=
270
x
=
135
Fraction of A decomposed
=
135
450
=
0.3
=
3
×
10
−
1
So,
x
=
3
© examsnet.com
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