Time The lab A reaction is taking place in a flask that is sitting on a lab bench. The flask is an example of the Attem 1 Hoc bench is an example of the Together, the flask and the lab bench represent the

Consider the following graphical representation of concentration versus time for the equilibrium system: COC1₂(g) = Cl₂(g) + CO(g) AH = + 108 kJ 0.14 0.12- -C1₂ 0.10- CO 0.08 0.06- COCI₂ 0.04 0.02- 0.00 0 2 8 10 16 Time (min) a) What change was imposed at time = 4 minutes? Be specific. b) What change was imposed at time = 10 minutes? Be specific. c) What change was imposed at time = 14 minutes? Be specific. d) Using the data for the 12 minute mark, calculate the value of Keq at the temperature concerned. Show your work. Concentration (mol L-¹) 12 18

1. The diagrams below represent the following reversible chemical reaction: H2(g) + 12 (g) =2 HI (g) At 448 °C, the equilibrium constant, K, for this reaction is 51 Initial Conditions: Temperature = 448 °C Volume of the container = 2.0 L 0 = 1 mole H2 (g) = 1 mole I2 (g) 00 00 .. 00 00 •. What is the initial molar concentration of hydrogen. [H:]? What is the initial molar concentration of iodide, [I2]? M This system will reach equilibrium when rate of the forward reaction is equal to the rate of the reverse reaction. Write the equilibrium constant expression, Kc, for this reaction: Calculate the equilibrium concentrations for H;(g), I (g) and HI (g) H2(g}_ + l2 (g) 2 HI (g) [H2] [L2] [HI Initial Change Equilibrium +2x -X-

NH3(g) + H2O(l) → NH2 + + H3O+ t The equilibrium constant is 1 x 10 -34. Is this reaction likely to take place? Why? Choose the best answer below. a. Yes, because the equilibrium constant is very small and equilibrium will lie far to the left. b. Yes, because the equilibrium constant is very small and equilibrium will lie far to the right. c. No, because the equilibrium constant is very small and equilibrium will lie far to the right. ☐ d. No, because the equilibrium constant is very small and equilibrium will lie far to the left. Click Submit to complete this assessment.

MAI Van JL.cas-Cudo Lab Assignment #3 E.mheducation.com Saved # 3 6 Be sure to answer all parts. Consider the following equilibrium system involving SO2, Cl2, and SO,Cl, (sulfuryl dichloride): SO2(g) + Cl2(g) = SO,C(g) Predict how the equilibrium position would change if the following changes were to occur. The temperature remains constant in each case. (a) Cl, gas is added to the system. The equilibrium will not change. The equilibrium position will shift to favor the reverse reaction. ((More reactants form.) The equilibrium position will shift to favor the forward reaction. (More products form.) (b) SO,Cl, is removed from the system. The equilibrium will not change. The equilibrium position will shift to favor the reverse reaction. (More reactants form.) The equilibrium position will shift to favor the forward reaction. (More products form.) (c) SO, is removed from the system. The equilibrium will not change. The equilibrium position will shift to favor the reverse reaction. (More…

which statement is true?

Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide, like this: 3 NO₂(9)+H₂O(1)→2 HNO3(aq) + NO(g) At a certain temperature, a chemist finds that a 4.4 L reaction vessel containing a mixture of nitrogen dioxide, water, nitric acid, and nitrogen monoxide at equilibrium has the following composition: compound amount NO₂ 10.6 g H₂O 138.4 g HNO3 21.8 g NO 19.6 g Calculate the value of the equilibrium constant K for this reaction. Round your answer to 2 significant digits. с K = [] x10 ×

IPse_assessment_id=_2032637_1&course Remaining Time: 1 hour, 28 minutes, 28 seconds. * Question Completion Status: O Decreasing the amount of H2. QUESTION 2 *Which of the following statements about a system at chemical equilibrium is true? O The forward and reverse reactions both stop. O The forward reaction has a faster rate than the reverse reaction. O The reverse reaction has a faster rate than the forward reaction. The forward reaction rate is equal to the reverse reaction rate. O There are no more reactants left. QUESTION 3 Which statement about organic compouunds is falee? Click Save and Submit to save and submit. Click Save All Answers to save all answers. search DELL prt s