Answer
The reaction is not at equilibrium, and it will proceed in the reactants direction (to the left).
Work Step by Step
1. The exponent of each pressure is equal to its balance coefficient.
$$Q_P = \frac{P_{Products}}{P_{Reactants}} = \frac{P_{ H_2 }P_{ Br_2 }}{P_{ HBr } ^{ 2 }}$$
2. Substitute the values and calculate the quotient value:
$$Q_P = \frac{( 0.010 )( 0.010 )}{( 0.20 )^{ 2 }} = 2.0 \times 10^{-3}$$
3. $Q_p \gt K_p$, therefore the reaction is not at equilibrium, and it will proceed in the reactants direction (to the left).
