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Byju's Answer
Standard XII
Chemistry
Characteristics of Equilibrium Constant
Calculate the...
Question
Calculate the equilibrium constant for the reaction
H
2
(
g
)
+
C
O
2
(
g
)
⇌
H
2
O
(
g
)
+
C
O
(
g
)
at
1395
K
, if the equilibrium constants at
1395
K
for following are:
2
H
2
O
(
g
)
⇌
2
H
2
+
O
2
(
g
)
;
K
1
=
2.1
×
10
−
13
2
C
O
2
(
g
)
⇌
2
C
O
(
g
)
+
O
2
(
g
)
;
K
2
=
1.4
×
10
−
12
.
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Solution
For
2
H
2
O
(
g
)
⇌
2
H
2
(
g
)
+
O
2
(
g
)
;
K
1
=
[
H
2
]
2
[
O
2
]
[
H
2
O
]
2
.
.
.
.
(
1
)
For
2
C
O
2
(
g
)
⇌
2
C
O
(
g
)
+
O
2
(
g
)
K
2
=
[
C
O
]
2
[
O
2
]
[
C
O
2
]
2
.
.
.
(
2
)
For
C
O
2
(
g
)
+
H
2
(
g
)
⇌
H
2
O
(
g
)
+
C
O
(
g
)
K
=
[
H
2
O
]
[
C
O
]
[
C
O
2
]
[
H
2
]
.
.
.
(
3
)
By dividing eq. (2) by eq. (1) :
K
2
K
1
=
[
C
O
]
2
[
O
2
]
[
C
O
2
]
2
×
[
H
2
O
]
2
[
H
2
]
2
[
O
2
]
K
2
K
1
=
[
C
O
]
2
[
H
2
O
]
2
[
C
O
2
]
2
[
H
2
]
2
=
K
2
by Eq. (3)
or
K
=
√
(
K
2
K
1
)
=
√
(
1.4
×
10
−
12
2.1
×
10
−
13
)
=
2.58
.
Suggest Corrections
0
Similar questions
Q.
The equilibrium constants for the following reactions at
1400
K
are given:
2
H
2
O
(
g
)
⇌
2
H
2
(
g
)
+
O
2
(
g
)
;
K
1
=
2.1
×
10
−
13
2
C
O
2
(
g
)
⇌
2
C
O
(
g
)
+
O
2
(
g
)
;
K
2
=
1.4
×
10
−
12
Then, the equilibrium constant
K
for the reaction,
H
2
(
g
)
+
C
O
2
(
g
)
⇌
C
O
(
g
)
+
H
2
O
(
g
)
, is:
Q.
Equilibrium constants for the following reaction at 1200 K are given.
2
H
2
O
(
g
)
⇋
2
H
2
(
g
)
+
O
2
(
g
)
;
K
1
=
6.4
×
10
−
8
2
C
O
2
(
g
)
⇋
2
C
O
(
g
)
+
O
2
(
g
)
;
K
2
=
1.6
×
10
−
6
The equilibrium constant for the reaction
H
2
(
g
)
+
C
O
2
(
g
)
⇋
C
O
(
g
)
+
H
2
O
(
g
)
at 1200 K will be:
Q.
Calculate the equation constant for the reaction:
H
2
(
g
)
+
C
O
2
(
g
)
⇌
H
2
O
(
g
)
+
C
O
at 1395 K, if the equilibrium constants at 1395 K for the following are
2
H
2
O
(
g
)
⇌
2
H
2
(
g
)
+
O
2
(
g
)
K
1
=
2.1
×
10
−
13
2
C
O
2
(
g
)
⇌
2
C
O
(
g
)
+
O
2
(
g
)
K
2
=
1.4
×
10
−
12
Q.
At 1000 K, the equilibrium constants for the following
equilibrium are
K
1
and
K
2
.
C
O
C
l
2
(
g
)
⇌
C
O
(
g
)
+
C
l
2
(
g
)
;
K
1
=
0.329
2
C
O
(
g
)
+
O
2
(
g
)
⇌
2
C
O
2
(
g
)
;
K
2
=
2.24
×
10
22
For the equilibrium,
2
C
O
C
l
2
(
g
)
+
O
2
(
g
)
⇌
2
C
O
2
(
g
)
+
2
C
l
2
(
g
)
, the equilibrium constant
K
3
is:
Q.
For the reaction in equilibrium
(I)
C
O
(
g
)
+
1
2
O
2
(
g
)
⇌
C
O
2
(
g
)
(II)
2
C
O
(
g
)
+
O
2
(
g
)
⇌
2
C
O
2
(
g
)
Then,
Equilibrium constant
Free energy change
K
1
Δ
G
1
K
2
Δ
G
2
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