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Byju's Answer
Standard XII
Chemistry
Characteristics of Equilibrium Constant
The equilibri...
Question
The equilibrium constant at 717 K for the reaction :
H
2
(
g
)
+
I
2
(
g
)
⇌
2
H
I
(
g
)
is 50.
The equilibrium constant for the reaction :
2
H
I
(
g
)
⇌
H
2
(
g
)
+
I
2
(
g
)
at same temperature is:
A
0.50
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B
2
×
10
−
2
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C
4.0
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D
1
×
10
−
1
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Solution
The correct option is
B
2
×
10
−
2
Here,
K
e
q
u
i
l
i
b
r
i
u
m
= 50
If
K
1
eq =
1
K
e
q
K=
[
p
r
o
d
u
c
t
]
[
r
e
a
c
t
a
n
t
]
K
e
q
=
[
H
I
]
2
[
H
2
]
[
I
2
]
K
1
e
q
=
[
H
2
]
[
I
2
]
[
H
I
]
2
K
1
e
q
=
1
50
= 2 X
10
−
2
Option B is correct.
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1
Similar questions
Q.
The equilibrium constant K for the reaction
2
H
I
(
g
)
⇌
H
2
(
g
)
+
I
2
(
g
)
at room temperature is
2.85
and that at
698
K
is
1.4
×
10
−
2
. This implies :
Q.
The value of the equilibrium constant for the reaction
H
2
(
g
)
+
I
2
(
g
)
⇌
2
H
I
(
g
)
at
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K is
48
. What is the value of the equilibrium constant for the following reaction?
1
2
H
2
(
g
)
+
1
2
I
2
(
g
)
⇌
H
I
(
g
)
Q.
At a certain temperature , only 50% Hl is dissociated at equilibrium in the reaction
2
H
I
(
g
)
⇌
H
2
(
g
)
+
I
2
(
g
)
The equilibrium constant for the reaction is:-
Q.
If the equilibrium constant of the reaction,
2
H
I
(
g
)
⇌
H
2
(
g
)
+
I
2
(
g
)
is
0.25
, the equilibrium constant of
H
2
(
g
)
+
I
2
(
g
)
⇌
2
H
I
(
g
)
, under similar conditions, will be:
Q.
For the reaction,
H
2
(
g
)
+
I
2
(
g
)
⇌
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H
I
(
g
)
equilibrium constant,
K
p
changes with:
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