APFIVE Reaction Quotient and Equilibrium Shift
Consider the reaction $$2*SO_2 + O_2 \rightleftharpoons 2*SO_3$$ with an equilibrium constant $$K_{eq} = 100$$. Using the initial concentrations provided, calculate the reaction quotient $$Q = \frac{[SO_3]^2}{[SO_2]^2[O_2]}$$ and determine the direction the reaction will shift to reach equilibrium.
| Species | Concentration (M) |
|---|---|
| SO₂ | 0.5 |
| O₂ | 0.2 |
| SO₃ | 0.1 |
A
No shift occurs because Q is nearly equal to K.
B
The reaction will shift left towards more SO₂ and O₂.
C
The system is already at equilibrium.
D
The reaction will shift right towards more SO₃.
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