CHM 2046 Midterm: Exam-1-Review-CHM-2046
Document Summary
Note: questions 1-3 are only applicable to those in dr. lopez"s class; Questions 11-15 are only applicable to those in dr. talham"s/savin"s class: sodium-24 is a radioactive isotope that decays via first order kinetics and has a half-life of 15 hours. I: the forward reaction has a smaller activation energy than the reverse reaction. Ii: adding a catalyst will lower the enthalpy of the reaction. Step 1: no + no n2o2 (fast) Step 2: n2o2 + h2 h2o + n2o (slow) Step 3: n2o + h2 n2 + h2o (fast) I: the rate law for the overall reaction is rate = k[n2o2][h2] Ii: the absolute value of the rate of change of h2 is the rate of change of n2. I: reaction i is predicted to have a higher collision frequency. Ii: reaction i is predicted to have a higher value of k at 50 c (1) only i.
