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Byju's Answer
Standard XII
Chemistry
Molality
The equilibri...
Question
The equilibrium constant of the reaction;
S
O
3
(
g
)
⇌
S
O
2
(
g
)
+
1
2
O
2
(
g
)
; is
0.20
m
o
l
e
1
2
.
l
i
t
r
e
−
1
2
at
1000
K
. Calculate equilibrium constant for
2
S
O
2
(
g
)
+
O
2
(
g
)
⇌
2
S
O
3
(
g
)
.
Open in App
Solution
For
S
O
3
(
g
)
⇌
S
O
2
(
g
)
+
1
2
O
2
(
g
)
K
c
1
=
[
S
O
2
]
[
O
2
]
1
/
2
[
S
O
3
]
=
0.20
.
.
.
.
(
1
)
For
2
S
O
2
+
O
2
⇌
2
S
O
3
K
c
=
[
S
O
3
]
2
[
S
O
2
]
2
[
O
2
]
.
.
.
(
2
)
By reversing Eq. (1),
1
K
c
1
=
[
S
O
3
]
[
S
O
2
]
[
O
2
]
1
/
2
Squaring both sides
(
1
K
c
1
)
2
=
[
S
O
3
]
2
[
S
O
2
]
2
[
O
2
]
=
K
c
by Eq. (2)
∴
K
c
=
[
1
0.20
]
2
=
25
m
o
l
−
1
l
i
t
r
e
.
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Similar questions
Q.
The equilibrium constant of the reaction,
S
O
3
(
g
)
⇌
S
O
2
(
g
)
+
1
2
O
2
(
g
)
,
is
0.20
m
o
l
e
1
/
2
l
i
t
r
e
−
1
/
2
at
1000
K
. The equilibrium constant for
S
O
2
(
g
)
+
O
2
(
g
)
⇌
2
S
O
3
(
g
)
is:
Q.
The equilibrium constant of the reaction,
S
O
3
(
g
)
⇌
S
O
2
(
g
)
+
1
2
O
2
(
g
)
is 0. 15 at 900 K. Calculate the equilibrium constant for
2
S
O
2
(
g
)
+
O
2
(
g
)
⇌
2
S
O
3
(
g
)
:
Q.
For the reaction,
S
O
2
(
g
)
+
1
2
O
2
(
g
)
⇌
S
O
3
(
g
)
, the value of
K
c
is
1.7
×
10
12
at
300
K
. Calculate the equilibrium constants for the following reactions at
300
K
:
(I)
2
S
O
2
(
g
)
+
O
2
(
g
)
⇌
2
S
O
3
(
g
)
(II)
S
O
3
(
g
)
⇌
S
O
2
(
g
)
+
1
2
O
2
(
g
)
Q.
The equilibrium constant for the reaction,
2
S
O
2
(
g
)
+
O
2
(
g
)
⇌
2
S
O
3
(
g
)
is 256 at 1000K. The equilibrium constant for the reaction
S
O
3
(
g
)
⇌
S
O
2
(
g
)
+
1
2
O
2
(
g
)
is:
Q.
The equilibrium constant of the reaction
S
O
2
(
g
)
+
1
2
O
2
(
g
)
⇌
S
O
3
(
g
)
is
4
×
10
−
3
a
t
m
−
1
/
2
.
The equilibrium constant of the reaction
2
S
O
3
(
g
)
⇌
2
S
O
2
(
g
)
+
O
2
(
g
)
would be:
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