Consider the reaction: 2 S(s) + 3 02(g)2 S03(g) Write the equilibrium constant for this reaction in terms of the equilibrium constants, K, and K2, for the reactions below: S(s) + 02(g) Es02(g) K1 so,(g) + 1/2 02(g)=503(g) K, For answers with both a subscript and a superscript, enter the subscript first. For example, enter K,2 if the first equilibrium constant should be squared. K =

Equilibrium: 7. Write the equilibrium expression, K, for the following reactions: 2NH, (g) + CO2 (g) N,CH,0 (s) + H,0 (g) K= N2 (g) + 02 (g) 2 NO (g) K= 8. Consider the following reaction at equilibrium. 2S0, (g) 2S0, (g) + 02 (g) Predict the affect on equilibrium (will it shift left, shift right or no change?): a. Oxygen gas is removed: b. The volume is increased: c. The pressure is increased: d. SO, is added: e. SO, is added:

The equilibrium constant for the following reaction is 67.6 at 232 °C. PCI 3(g) + Cl₂(g) PCI5(g) K = 67.6 at 232 °C Calculate the equilibrium constant for the following reactions at 232 °C. (a) PCI5(g) PCl3(g) + Cl₂(g) K= (b) 2 PCI5(g) 2 PCI3(g) + 2 Cl₂(g) K=

Consider the reaction: SO₂(g) + 1/2O₂(g) ⇒ SO3 (9) Write the equilibrium constant for this reaction in terms of the equilibrium constants, K₁ and K2, for the reactions below: 2S(s) + 30₂(g) ⇒ 2SO3 (9) K₁ S(s) + O₂(g) → SO₂(g) K₂ For answers with both a subscript and a superscript, enter the subscript first. For example, enter K if the first equilibrium constant should be squared. K= An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer.

[5] The following equilibrium constants were determined at 1123 K C(s) + CO(g) = 2CO(g) K = 1.3x 10¹4 -3 CO(g) + Cl₂(g) = COCI(g) K = 6.0x 10-³ Determine the equilibrium constant for the reaction C(s) + CO(g) + 3Cl2(g) = 2COCl2(g) at 1123K [6] For each of the following reactions convert between Kp and Kc a) Determine Kp at 1173K for the reaction CS2(g) + 4H₂(g) = CH4(g) + 2H2S(g) At this temperature Kc = 27.8. b) Determine Kc at 1100K for the reaction 2SO2(g) + O2(g) = 2SO3(g). At this temperature Kp = 0.25

Write equilibrium-constant expressions K, for each of the following reactions. PC|3(g) + 3NH3(g) D P(NH2)3g) + 3HC((g) 4NH3(g) + 502E)D 4NO(g) + 6H20(g) NazCO3(s) + SO23) + ½ O2(g) D Naz504(s) + CO2(g)

What is the value of the equilibrium constant Kc of the reaction at the temperature of the vessel?