55. Consider the reaction: MISSED THIS? Read Section 16.8; Watch KCV 16.8, IWE 16.9 NiO(s) + CO(g) Ni(s) + CO2(g) K. = 4.0 × 10³ at 1500 K If a mixture of solid nickel(II) oxide and 0.20 M carbon monox- ide comes to equilibrium at 1500 K, what is the equilibrium concentration of CO,?

CO(g) + H₂O(g) ⇒ H₂(g) + CO₂(g) K = 7.3@823 K A closed 5.0 L container initially holds 3.0 moles CO and 6.0 moles H2O. Calculate the concentrations of each material at equilibrium. What is the equilibrium concentration of H₂O? [H₂O] = [?] M

A. Using the Le Chatelier’s principle, predict the shift in the direction of the equilibrium position and changes that will be observed (e.g. color) in each of the following equilibria when the indicated condition is applied.

At equilibrium, the concentrations in this system were found to be [N,] = [O,] = 0.200 M and [NO] = 0.500 M. N2(g) + O2(g) = 2 NO(g) If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established? [NO]inal M

7. Phosgene COCl2 is prepared from CO and Cl₂ CO (g) + Cl₂(g) COC1₂(g) An equilibrium mixture at 395 °C contains 0.012 mol CO and 0.025 mol Cl₂ per liter. If Kc at 395 °C is 1.23 X 10³, what is the concentration of COC1₂?

A 1.00 liter flask contained 0.24 mol NO2 at 700 K which decomposed according to the reaction 2 NO2(g) = 2NO(g) + O2(g). At equilibrium the amount of NO was measured to be 0.14 mol, what is the value of Kc? A. 9,6 x 103 B. 1.1 x 102 C. 9.8 x 102 D. 1,4 x 101 E. 5.7 x 103

The value of Kc for the equilibrium SO2(g) + Cl2(g) SO2Cl2(g) is 156.25 at 100°C. If an experiment begins with [SO2].=0.0350 M, [Cl2].= 0.0270 M and [SO2Cl2]0=0.000 M, roce 29lo 88. chinisinoo stulxim what are the equilibrium concentrations? Cla dal 100 756.25 = Ans: [SO2]-0.0158 M; [Cl2]= 0.00779 M; [SO2Cl2] = 0.0192 eruteneamet aidi is (e)0 H. [001 en A Tabruggmoo (570-x)(880-x)