Chemical EquilibriumHard
Question
NO2 is involved in the formation of smog and acid rain. It is formed importantly as:
NO(g) + O3(g) $\rightleftharpoons$ NO2(g) + O2(g); KC = 6.0 × 1034
Options
A.more of NO and O3 tend to be formed.
B.more of NO2 and O2 tend to be formed.
C.more of NO2 and O3 tend to be formed.
D.no tendency to change because the reaction is at equilibrium.
Solution
$Q = \frac{\left\lbrack NO_{2} \right\rbrack\left\lbrack O_{2} \right\rbrack}{\lbrack NO\rbrack\left\lbrack O_{3} \right\rbrack} = \frac{\left( 2.5 \times 10^{- 4} \right) \times \left( 8.2 \times 10^{- 3} \right)}{\left( 1.0 \times 10^{- 5} \right) \times \left( 1.0 \times 10^{- 6} \right)} = 2.05 \times 10^{5} < K_{C}$
Hence, the net reaction is in forward direction.
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