1. Chemistry 104B Dr. Christine Yerkes 207 Chem Annex 333-6353
Mon. and Wed. 1:00 - 2:00
Tues. and Thurs.11: :00
or by appointment

2. Required Texts:
Chemistry, 8th ed., Zumdahl
Recommended text:
Organic Chemistry: a Short Course
13th ed., Hart, Crane, Hart
I-Clicker
Quiz sections begin: Monday, Jan. 24

3. Grading Policy: On-line Homework: 70 pts. Quiz score: 150 pts.
I > clicker pts.
Hour Exams (3 x 150) 450 pts.
Final Exam pts.
1000 pts.
No make-up quizzes or exams

4. Grades 1000 points total 97-100% (970 - 1000) = A+
% ( ) = B+
% ( ) = B
% ( ) = B-
etc., etc., etc.

5. 150 points Quiz scores: weekly quizzes - material from Lecture and
Quiz section
Quizzes on LON-CAPA
open Wednesday at 5:00
open for 1 week
Three tries – 1st worth 15
2nd worth 13.5
3rd worth 12
keep 10 highest
150 points

6. On-line Homework: 10 Homework assignments on LON-CAPA
due dates in the on-line Syllabus and calendar
credit for all problems completed by deadline
normalized to 70 points

7. I > clicker 1 point for answering questions during lecture
0.25 points for each correct answer
Keep 30 highest scores

8. Course Homepage Course Web Sites Chem 104B Lon-Capa = net i.d.
www.
chem.uiuc.edu
Course Web Sites
Chem 104B
Lon-Capa = net i.d.
Password = AD password
homepage

9. - + Thermodynamics Thermo = heat or energy dynamics = movement System
Surroundings

10. Open systems - Closed systems + Isolated systems mass and energy
Surroundings
no exchange

11. P.E.grav = mass x g x height
Energy
Internal Energy = E
E =
Kinetic Energy
+ Potential Energy
energy due to motion
energy due to position
K.E. = 1/2 mv2
P.E.grav = mass x g x height

12. Kinetic Potential Energy

13. Kinetic Energy K.E. = 1/2 mv2 K.E. K.E. K.E. K.E. = + +
total
K.E.
translation
K.E.
rotation
K.E.
vibration = + +
K.E.translation
 Temperature
(K)
degrees of freedom
= 3n
n = # atoms

14. Kinetic Energy K.E. = 1/2 mv2 K.E. K.E. K.E. K.E. K.E. = + + total
translation
K.E.
rotation
K.E.
rotation
K.E.
vibration = + +

15. Potential Energy - - - - - P.E.  Q1Q2 r Q = charge r = distance+ - r - -
Q =
charge + +
r =
distance
P.E.total =
P.E.
n-n
+ P.E.
e-e
+ P.E.
n-e
+ P.E.
IMF - - + +

16. Potential Energy - - Chemical changes P.E.total = P.E. n-n + P.E. e-e
IMF - - + +
CH4
+ 2O2
 CO2
+ 2H2O C H O H
O=O
O=C=O + +

17. Potential Energy chemical changes
P.E.reactants
P.E.products
products
reactants
( T )
K.E.
P.E.
reactants
products

18. Potential Energy - P.E.total = P.E. n-n + P.E. n-e e-e IMF +
physical changes
chemical changes

19. Potential Energy Physical changes
Q1Q2 r
Intermolecular forces:
ion-ion
Na+
Cl- d+
H-bond d-
ion-dipole
Na+ d- d+
Cl-
LDF d+
dipole-dipole d-
O=C=O d- d+ d- d+ d-