Exercise \(\PageIndex{1}\) \[3 H_{2 (g)} + N_{2 (g)} \longleftrightarrow 2 NH_{3 (g)}\] What is the equilibrium constant expression of the reaction above? Answer \(K_{eq} = \dfrac{[NH_{3}]^{2}}{[H_{2}]^{3}[N_{2}]}\) Exercise \(\PageIndex{1}\) \[2 SO_{2 (g)} + O_{2 (g)} \longleftrightarrow 2 SO_{3 (g)}\] The K eq of the reaction above is 3.4 x 10 2 . Is the equilibrium mixture mostly SO 2 and O 2 or mostly SO 3 ? Answer mostly SO 3 Exercise \(\PageIndex{1}\) \[C_{(s)} + 2 S_{(g)} \longleftrightarrow CS_{2 (g)}\] What is the equilibrium constant expression of the reaction above? Answer \(K_{eq} = \dfrac{[CS_{2}]}{[S]^{2}}\) Exercise \(\PageIndex{1}\) \[Pb^{2+}_{(aq)} + 2 Cl^{1–}_{(aq)} \longleftrightarrow PbCl_{2 (s)}\] What is the equilibrium constant expression of the reaction above? Answer \(K_{eq} = \dfrac{1}{[Pb^{2+}][Cl^{1–}]^{2}}\)