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Chemistry
Chemistry
Problem
For the gaseous reaction
2
N
O
2
(
g
)
⇌
N
2
O
4
(
g
)
2\,\mathrm{NO}_{2}(g)\rightleftharpoons\mathrm{N}_{2}\mathrm{O}_{4}(g)
2
NO
2
(
g
)
⇌
N
2
O
4
(
g
)
, which of the following expressions represents the reaction quotient
Q
Q
Q
at a given moment? a)
Q
=
[
N
O
2
]
2
[
N
2
O
4
]
Q=\dfrac{[\mathrm{NO}_{2}]^{2}}{[\mathrm{N}_{2}\mathrm{O}_{4}]}
Q
=
[
N
2
O
4
]
[
NO
2
]
2
b)
Q
=
[
N
2
O
4
]
[
N
O
2
]
Q=\dfrac{[\mathrm{N}_{2}\mathrm{O}_{4}]}{[\mathrm{NO}_{2}]}
Q
=
[
NO
2
]
[
N
2
O
4
]
c)
Q
=
[
N
2
O
4
]
2
[
N
O
2
]
Q=\dfrac{[\mathrm{N}_{2}\mathrm{O}_{4}]}{2[\mathrm{NO}_{2}]}
Q
=
2
[
NO
2
]
[
N
2
O
4
]
d)
Q
=
[
N
2
O
4
]
[
N
O
2
]
2
Q=\dfrac{[\mathrm{N}_{2}\mathrm{O}_{4}]}{[\mathrm{NO}_{2}]^{2}}
Q
=
[
NO
2
]
2
[
N
2
O
4
]
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