Chemistry 102
Unit DesignNaleway
Chemical Kinetics
(Chapter 15)
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Definition of REACTION RATE
Influence of TIME on Reaction Rate
Incremental Changes t
Instantaneous Changes dt
Relationship of Reaction Rate with Stoichiometry of Reaction
Influence of Concentration on the Rate of Reaction
Rate Law Rate= k [A]n[B]m
Reaction Order
Kinetics is an Experimental Science
Use of Initial Rates to Determine Rate Law
Examination of Reaction Processes (Change of Concentration with Time)
First Order Reactions
Second Order Reactions
Half Life for 1st and 2ndOrder Reactions
Collision Model and Influence on Reaction Rate
Details of Model
Boltzmann Distribution
Arrhenius Equation
Examination of the Arrhenius Equation
Determination of Activation Energies from the Arrhenius Equation
Reaction Mechanisms
Elementary Steps
Multi-step Mechanisms
Rate Law for Multi-step Mechanism
RATE DETERMING/LIMITING STEP
Catalysis
Role of Catalysis
Types of Catalysis (Homogeneous vs. Heterogeneous)
Recommended Practice:
OWL Website Homework Assignment 2
MasteringChemistry website (Assignment 2)
Brown websiteChapter 14
Outcomes:
1)Understand the processes associated with Reaction Rates
2)Understand the influence of a changing concentration of the reactants on the Rate of any reaction
3)Understand how the stoichiometry of the balanced reaction influences the Rates for all constitutes in the reaction
4)Understand the definition of the Rate Law and the meaning of the rate constant and the reaction orders of the constituents and total reaction
5)Understand the difference between initial reaction rates and instanteous reaction rates and when/why they are used
6)Be able to use ”experimental” Initial reaction rates to determine the order of the reaction and the rate constant for the reaction.
7)Understand the effect of concentration on 1st order and 2nd order reactions
8)Be able to solve problems involving both 1st and 2nd order reaction kinetics
9)Understand and be able to determine the half life for both 1st and 2nd order reactions
10)Be able to identify the primary processes within the Collision Model that influence Reaction Kinetics
11)Understand how temperature as depicted using the Boltzmann Distribution influences the kinetics of Reactions
12)Understand the origin and application of the Arrhenius Equation
13)Be able to graphically depict the temperature dependence of the Arrhenius Equation on Reaction Rate
14)Be able to use the Arrhenius Equation to solve for the Activation Energy of a Reaction
15)Understand the Concept of Reaction Mechanism and it’s consequences
16)Be able to utilize elementary steps in the Reaction Mechanism to determine the molecularity of the step/process
17)Understand the role of the rate limiting step ( slowest step) on the overall rate order of the reaction
18)Understand the types of catalyst and how they influence the kinetics of a reaction.