| 1. | Safety |
| 2. |
Objectives/Overview |
| 3. |
Procedures |
|
4. |
Observations |
| 5. | |
| 6. | |
| 7. | Conclusions |
| 8. | Calculations/Set-Ups |
| 9. | Grading Scale |
| 10. | Review Prelab Questions |
|
11. |
Review Postlab Questions |
Experiment
15
Kinetics:
Rates of Reaction and Activation Energies
PRELAB QUESTIONS
References: Brown, Lemay, and Bursten,
Chemistry the Central Science, 8th ed. (2000),
pp. 519-524 (first and second order reactions);
pp. 525-532 (effect of temperature on rate and the Arrhenius equation).
Learning Center: SSM Lesson 23 (pp. 306-328); GAPS Les 4; SER AP 606 (SER PC 601) "Kinetics"; answers to pre and post-lab questions.
SHOW SET-UP FOR ALL PROBLEMS
1. What is the value of the rate constant for a first order reaction if the concentration of reactant drops from 2.00 M to 0.30 M over a 35 minute period?
2. What is the value of the rate constant for a second
order reaction if the concentration of reactant drops from
2.00 M to 0.30 M over a 35 minute period?
3. What is the activation energy (Ea) of a first
order reaction if the reaction rate constant (k) increases from 0.0300
min-1 to 0.500 min-1 as the temperature is increased from 20.0 ¾C
to 45.0 ¾C?
