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Byju's Answer
Standard XII
Chemistry
Characteristics of Equilibrium Constant
A ⇌ B. In thi...
Question
A
⇌
B
. In this reaction
k
f
is
2
×
10
−
3
and
k
b
is
5
×
10
−
4
. Determine the value of
K
c
.
A
4
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B
3
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C
6
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D
7
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Solution
The correct option is
D
4
We know
K
c
=
K
f
K
b
putting the given values
K
C
=
2
×
10
−
3
5
×
10
−
4
=
4
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0
Similar questions
Q.
In the following equilibrium reaction
2
A
⇌
B
+
C
,
the equilibrium concentration of
A
,
B
and
C
are
1
×
10
−
3
M
,
2
×
10
−
3
M
and
3
×
10
−
3
M
respectively at
300
K
.
Then what is the value of
K
c
for this equilibrium reaction at the same temperature?
Q.
The value of
k
p
for the reaction
2
A
B
(
g
)
⇔
2
A
(
g
)
+
B
2
(
g
)
is
1.2
×
10
−
2
at
1065
∘
C
. The value of
k
c
for this reaction is:
Q.
The value of
k
c
for the reaction
2
A
⇌
B
+
C
is 2 x
10
−
3
At a given time the composition of reaction mixture is [A] = [B] = [C] = 3 x
10
−
4
M. In which direction the reaction will proceed?
Q.
The value of
K
p
for the reaction.
2
H
2
S
(
g
)
⇔
2
H
2
(
g
)
+
S
2
(
g
)
is
1.2
×
10
−
2
at
1065
∘
C
. The value of
K
C
for this reaction is:
Q.
For the gas-phase hydration of hexafluroacetone
(
C
F
3
)
2
C
O
:
(
C
F
3
)
2
C
O
(
g
)
+
H
2
O
(
g
)
K
f
⇌
K
b
(
C
F
3
)
3
C
(
O
H
)
2
(
g
)
At
76
0
C
,
K
f
=
0.13
M
−
1
s
−
1
and
K
b
=
6.2
×
10
−
4
s
−
1
then equilibrium constant
K
c
is
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