Question

1. The following equation represents the equilibrium reaction for thedissociationof phosgene gas. \mathrm{COCl}_{2(\mathrm{~g})} \rightleftharpoons \mathrm{CO}_{(\mathrm{g})}+\mathrm{Cl}_{2(\mathrm{~g})} At 100°C, the value of Kc for this reaction is 2.2 x 10-8. The initialconcentration of COCl2(g) in a closed container at 100°C is 1.5 mol/L.What are the equilibrium concentrations of CO(g) and Cl2(g)? 2. Hydrogen sulfide is a poisonous gas with a characteristic, offensiveodour. It dissociates at 1400°C, with Kc equal to 2.4 x 10-4. \mathrm{H}_{2} \mathrm{~S}_{\mathrm{g})} \rightleftharpoons 2 \mathrm{H}_{2(\mathrm{~g})}+\mathrm{S}_{2(\mathrm{~g})} 4.0 mol of H₂S is placed in a 3.0 L container. What is the equilibriumconcentrationof H2(g) at 1400°C? At a certain temperature, the value of Kc for the following reaction is3.3 x 10-¹2. 2 \mathrm{NCl}_{3(\mathrm{~g})} \rightleftharpoons \mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{Cl}_{2(\mathrm{~g})} A certain amount of nitrogen trichloride, NC13(g), is put in a 1.0 Lreaction vessel at this temperature. At equilibrium, 4.6 × 104 molof N2(g) is present. What amount of NC13(g) was put in the reactionvessel?

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