CHEM 112 Lecture Notes - Lecture 5: Rate Equation, Rate-Determining Step, Elementary Reaction
Document Summary
Elementary reaction, rate-determining step: determine rate law from proposed mechanisms. Today: determine rate law from proposed mechanisms, dependance of reactant concentrations on time. Integrated rate law for 0th order, 1st order, and 2nd order reactions. Reminder: hw2 is due @11:55 pm edt wed 2/3, kinetics concept review: wed 2/3, 6- 8 pm edt. Exam information page: exam 1: mon 2/8, 6:15 7:30 pm edt, canvas. Sign up for conflict exam via ebook chem 112 conflict signup page by 5 pm wed 2/3. If the initial step is slow (rate-determining), the overall reaction rate is determined by this step and the rate law can be written based on this step only. Back to the example: the observed rate law for the gas-phase reaction below is rate = k[no2]2. Step 2: no3 + co no2 + co2 slow fast. Some reaction can have a fast initial step y g r e n.
