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Chemical Equilibrium
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Heterogeneous equilibria and simultaneous equilibria
NEET level
Single correct option
Difficulty 1 of 3
ce063
The expression for
K
c
of the reaction
C
(
s
)
+
CO
X
2
(
g
)
2
CO
(
g
)
is
A
K
c
=
[
CO
]
2
[
CO
X
2
]
B
K
c
=
[
CO
X
2
]
[
CO
]
2
C
K
c
=
[
CO
X
2
]
[
CO
]
D
K
c
=
[
C
]
[
CO
X
2
]
[
CO
]
2
Answer: B
The solid carbon is left out of the expression. Products go in the numerator, each raised to its stoichiometric coefficient, so
K
c
=
[
CO
]
2
/
[
CO
X
2
]
.
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