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Chemistry
Chemistry
Problem
At
298
K
298\,\text{K}
298
K
, the equilibrium constant for the gas-phase reaction
N
2
O
4
(
g
)
↔
2
N
O
2
(
g
)
\mathrm{N_2O_4}(g) \leftrightarrow 2\,\mathrm{NO_2}(g)
N
2
O
4
(
g
)
↔
2
N
O
2
(
g
)
is
4.8
×
10
3
4.8 \times 10^3
4.8
×
1
0
3
. Calculate the standard Gibbs free energy change,
Δ
G
∘
\Delta G^\circ
Δ
G
∘
(in
kJ mol
−
1
\,\text{kJ mol}^{-1}
kJ mol
−
1
), for the dissociation of
N
2
O
4
\mathrm{N_2O_4}
N
2
O
4
at this temperature. (Use
R
=
8.314
J mol
−
1
K
−
1
R = 8.314\,\text{J mol}^{-1}\,\text{K}^{-1}
R
=
8.314
J mol
−
1
K
−
1
.)
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