FR
EN
Cinétique chimiquePO MRI 1 (STPI)
Chemical Kinetics
Teaching unit PO MRI 1
3ECTS (EU)
1Coefficient
24:00Hours
Séquencement
Learning objectives
- Determine the kinetics of a simple or complex chemical reaction (order, speed law, half-reaction time) based on experimental data.
- Address simple notions about the energy aspect of a reaction (activation energy, catalysis...)
Prerequisites
| Module | Teaching unit | Semester |
|---|---|---|
| Chemistry | Physics - Chemistry 1 | S1 |
| Thermodynamics 1 | Optional Constitutive Elements 1 | S1 |
| Chemistry 2 | Optional Constitutive Elements 1 | S1 |
| Thermodynamics | Physics - Chemistry 2 | S2 |
Program
- Macroscopic aspect of chemical reaction: Speed and chemical reaction: · Speed of disappearance/formation, speed of reaction, link to advancement. · Experimental determination of the order of a reaction, of a speed law, of half reaction time. · Energy aspects: Arrhenius law and activation energy.
- Microscopic aspect: Introduction to reaction mechanisms: · Basic act/complex mechanism. · Kinetic treatment of complex reactions: principle of the determining stage of speed, Bodenstein principle. · Stage/chain mechanism.
References
- Paul Arnaud, General Chemistry, Dunod.
- Chemistry, J. integrates MPSI-PTSI, companion, Dunod.
- Atkins, Chemistry Principles, De Boeck.
Skills
8| Ref. | Verb | Description | Level |
|---|---|---|---|
| C_1_1 | compare | reaction rate and rate of disappearance/formation of entities and recognition of kinetic factors. | 1 |
| C_1_1 | calculate | calculate the speed law of a complex reaction in open or closed sequence from the laws of Vans Hoff of each elemental act and the methods of kinetic treatment of a complex reaction | 1 |
| C_1_1 | calculate | an order of reaction using different methods (integral, differential, order degenerate, half reaction impregnated or stoichiometric conditions). Infer a speed constant and a half-reaction time. | 3 |
| C_1_1 | choose | Arrenius' law to find a new speed constant. | 2 |
| C_1_1 | recognize | the chemical equation symbolizing a global chemical reaction of an elemental act. Write Van't Hoff's laws of a mechanism. | 3 |
| C_1_2 | choose | experimental methods to calculate the kinetic characteristics of a reaction and the composition of a reaction mixture | 2 |
| C_1_2 | outline | an energy profile by differentiating activated complex and reaction intermediate. | 2 |
| C_1_2 | compare | conditions of use of different approximation methods: kinetically determining step, AEQS, rapid pre-balance) | 2 |