Answer Happy

Question 1 a) Write down an equilibrium expression (K) for the following reactions. i) 2H2O(g) + 2C(s) = 2CO(g) + 2H2(g) ii) Y2CH4 (g) + H2S (g) = 42CS2 (g) + 2H2 (g) iii) CH3CO2H (aq) + 2H20 (1) 5 CH3CO2 (aq) + H3O+ (aq) iv) N2 (g) + 3H2 (g) = 2NH3 (g) v) CaF2 (s) = y2Ca2+ (aq) +F (aq) b) When heated PCls, phosphorus pentachloride, forms PClz and Cl2 as follows: PC15(8) 5 PC13(g) + Cl2(g) When 1.00 mol PCls in a 1.00-L container is allowed to come to equilibrium at a given temperature, the mixture is found to contain 0.135 mol PC13. What is the molar composition of the mixture? Question 2 a) The following reactions have the indicated equilibrium constants at 100°C: 1) 2NOBr(g) 5 2NO(g) + Brz(g) K = 0.014 2) Br2(g) + Cl2(g) = 2BrCl(g) Kc = 7.2 Determine the K. value for the following reactions: i) 2NO(g) + Br2(g) 5 2NOBr(g) ii) 4NOBr(g) 54NO(g) + 2Br2(g) iii) NOBr(g) 5 NO(g) + 2Br2(g) Question 3 Use the given information below to answer the questions that follow. 2Fe3+ (aq) + 31 (aq) = 2Fe2+ (aq) + (aq) 2Fe3+ (aq) 31 (aq) 2Fe+ (aq) 13 (aq) I 0.300 M 0.200 M с +X E 0.025 M A. Calculate the equilibrium concentrations of all the reagents and remaining product. B. Calculate the equilibrium constant, K. C. Is the reaction above a reagent favoured or a product favoured reaction?