**Copyright Information:**Penner, Reginald Thermodynamics and Chemical Dynamics 131C (UCI OpenCourseWare: University of California, Irvine), http://ocw.uci.edu/courses/chem_131c_thermodynamics_and_chem... [January 28, 2015]. License: Creative Commons Attribution-ShareAlike 3.0 United States License. (http://creativecommons.org/licenses/by-sa/3.0/us/deed.en_US).

### Lecture Description

Recorded on May 21, 2012.

Slide Information

00:05 - some announcements...

02:37 - today...

03:36 - Svante Arrhenius

04:20 - Arrhenius discovered the greenhouse effect in 1896

04:39 - Article Arrhenius wrote about climate change

05:59 - experimentally we often observe an acceleration...Arrhenius Equation.

10:25 - consecutive reactions are sequences of reactions...

11:49 - an understanding of consecutive reactions is important...

12:44 - consider this generic consecutive reaction:

14:28 - what do these equations predict about [B] versus time?

18:02 - Ok, now let's look at the other possibility:

18:36 - what if...

20:23 - this suggests an expedient method for dealing with...steady-state approximation

25:50 - So - how does this compare with the exact solution?

27:08 - ...Let's first examine a case where we expect that it will work well...

28:40 - now we'll make...

29:16 - now a case where we expect...

30:32 - ...and this is a complete disaster - just as expected.

31:16 - the Steady-State Approximation:

33:43 - REMEMBER: this works if...

33:58 - Irvine Langmuir

35:00 - a page from G.N. Lewis's lab notebook...

35:26 - Photo: How does this work (tungsten bulb)?

37:35 - until 1906, all lightbulbs had carbon filaments. These bulbs were also evacuated

42:20 - the Lindeman-Hinshelwood mechanism...

48:18 - let's apply the steady-state approximation...

### Course Index

- Syllabus, Homework, & Lectures
- The Boltzmann Distribution Law
- Energy and q (The Partition Function).
- Entropy
- The Equipartition Theorem
- The Rotational Partition Function
- Vibrational Partition Functions
- The First Law
- Law (review) & Adiabatic Processes Part II
- Jim Joule
- Midterm I Review
- Entropy and The Second Law
- The Carnot Cycle
- The Gibbs Energy
- Getting to Know The Gibbs Energy
- The Chemical Potential
- Finding Equilibrium
- Equilibrium In Action
- Observational Chemical Kinetics
- The Integrated Rate Law
- The Steady State Approximation
- Midterm Exam Review
- Lindemann-Hinshelwood Part I
- Lindemann-Hinshelwood Part II
- Enzymes Pt. II
- Transition State Theory
- The Final Exam

### Course Description

In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics.

Chemistry Dept. | Physical Sciences Sch. | University of California, Irvine