1 / 19

Chemistry 104B

Chemistry 104B. Dr. Christine Yerkes 207 Chem Annex 333-6353 cyerkes@illinois.edu Mon. and Wed. 1:00 - 2:00 Tues. and Thurs.11:00 - 12:00 or by appointment. Required Texts:. Chemistry, 8th ed., Zumdahl. Recommended text: Organic Chemistry: a Short Course 13 th ed., Hart, Crane, Hart.

mairead
Télécharger la présentation

Chemistry 104B

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chemistry104B Dr. Christine Yerkes 207 Chem Annex 333-6353 cyerkes@illinois.edu Mon. and Wed. 1:00 - 2:00 Tues. and Thurs.11:00 - 12:00 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 30 pts. Hour Exams (3 x 150) 450 pts. Final Exam 300 pts. 1000 pts. No make-up quizzes or exams

  4. Grades 1000 points total 97-100% (970 - 1000) = A+ 93 - 96% (930 - 969) = A 90 - 92% (900 - 929) = A- 87 - 89% (870 - 899) = B+ 83 - 86% (830 - 869) = B 80 - 82% (800 - 829) = B- etc., etc., etc.

  5. 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 http:// 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 - • mass and energy Closed systems System + • energy Isolated systems Surroundings no exchange

  11. Energy E Internal Energy = E = Kinetic Energy + Potential Energy • energy due tomotion energy due toposition K.E. = 1/2 mv2 P.E.grav = mass x g x height

  12. Kinetic Potential Energy

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

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

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

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

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

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

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

More Related