For the gas-phase reaction at 600 K

CHEMISTRY · Subjective · AP · Chemistry · Equilibrium · Equilibrium

Problem

For the gas-phase reaction

2\text{SO}_2(g)+\text{O}_2(g) \rightleftharpoons 2\text{SO}_3(g)

at 600 K, the concentrations in a flask are

[\text{SO}_2]=0.30\,\text{M}

[\text{O}_2]=0.10\,\text{M}

, and

[\text{SO}_3]=0.40\,\text{M}

. Calculate

Q_c

for the reaction as written, compare it to

K_c = 4.5

, and state the direction in which the system will proceed (toward products, toward reactants, or no net change).