1. For Friday
Lon-Capa
Chapter 6 videos
Chapter 6 homework

2. 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

3. 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? me right away.
Review sessions:
Monday: TBA
Tuesday: 166 Bevier Hall from 7-8 PM

4. 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.

5. 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.

6. Change in Concentration/Time

7. Reaction Rate Over Time

8. Physical Equilibrium

9. Change Related to Coefficients

10. 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)
b) 0.10
c) 0.67
d) 1.0
e) I don’t know.