Question

Neview I LUIS dl ILS I PERIUUIU Idule Part A The equilibrium constant, K, of a reaction at a particular temperature is determined by the concentrations or pressures of the reactants and products at equilibrium. Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: For a gaseous reaction with the general form CO(g) + Cl2(g) = COCl2(g) aA + bB =cC + dD the Ke and Kp expressions are given by Carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 455 °C. At equilibrium, the concentrations were measured and the following results obtained: Kc = [01*D)" [A][B] Gas CO K = (Pc)(B) Partial Pressure (atm) 0.770 1.16 0.280 (PA)"(PB) Cl2 COCI hp The subscript c or p indicates whether K is expressed in terms of concentrations or pressures. Equilibrium-constant expressions do not include a term for any pure solids or liquids that may be involved since their composition does not change throughout the reaction. The standard state of a pure substance is the pure substance itself, and although the quantity may change the sample remain pure. The concentration is effectively equal to 1, and will not impact the magnitude of K. What is the equilibrium constant, Kp, of this reaction? Express your answer numerically. ► View Available Hint(s) PO AJO MO ? Kp - L Submit

Answer 1

Corgo & ₂ (g) → cou₂(g) kere Pour ( Pco) xllar 0.280 = 0.313 0.770 x 1.16 F 217 -18) Initial Change at equillibrium H₂(g) + 3.000 -36 3-0 Iz lg 2.50m -30 2.5-36 Change 22 Since [ Iz Jeg = 2.5-2 = 0.08 M 2 - 242 3.00 -34 = 0.58 M 2 X2-42 = 4.84M. [42] eq = [41] og = Kc = [hi] [4.84] ? [Hz] cq [ IzJcq 0.08 X0-58 S04.86 ke = 505.