For Friday Lon-Capa Chapter 6 videos Chapter 6 homework

Lon-Capa 3rd HW assignment due Monday, 9/19, 5 pm. 2nd Quiz due Monday, 9/19 by 10 pm. It will open Friday, 9/16 at 5 pm. Covers Chapters 5 and 6. 45 minutes

Exam I Thursday, September 22, 7:00-9:00 pm; rooms are on the website. Conflict: (9/22) 4:30-6:30pm in 165 Noyes Lab; sign up in 367 NL Conflict with conflict? Email me right away. Review sessions: Monday: TBA Tuesday: 166 Bevier Hall from 7-8 PM

Clicker Question Which of the following is true about chemical or physical equilibrium? a) It is microscopically and macroscopically static. b) It is microscopically and macroscopically dynamic. c) It is microscopically static and macroscopically dynamic. d) It is microscopically dynamic and macroscopically static. e) I do not know.

CO(g) + H2O(g) CO2(g) + H2(g) Clicker Question Consider the following equation: CO(g) + H2O(g) CO2(g) + H2(g) Which of the following must be true at equilibrium? a) [CO2] = [H2] because they are in a 1:1 mole ratio in the balanced equation. b) The total concentration of reactants is equal to the total concentration of the products. c) The total concentration of the reactants is greater than the total concentration of the products. d) The total concentration of the products is greater than the total concentration of the reactants. e) None of these is true.

Change in Concentration/Time

Reaction Rate Over Time

Physical Equilibrium

Change Related to Coefficients

Clicker Question Consider the reaction:N2(g) + 3H2(g) 2NH3(g) You initially have 5.0M N2(g) and 12.0M H2(g) and at equilibrium [NH3] = 6.0 M. Determine the value for K at this temperature. a) 0.0083 b) 0.10 c) 0.67 d) 1.0 e) I don’t know.