Unit 6 - Kinetics

Kinetics Objectives

5.1 Reaction Rates - TRA-3.A - Explain the relationship between the rate of a chemical reaction and experimental parameters.

5.2 Introduction to Rate Law - TRA-3.B - Represent experimental data with a consistent rate law expression. 

5.3 Concentration Changes Over Time - TRA-3.C - Identify the rate law expression of a chemical reaction using data that show how the concentrations of reaction species change over time. 

5.4 Elementary Reactions - TRA-4.A - Represent an elementary reaction as a rate law expression using stoichiometry. 

5.5 Collision Model - TRA-4.B - Explain the relationship between the rate of an elementary reaction and the frequency, energy, and orientation of molecular collisions. 

5.6 Reaction Energy Profile - TRA-4.C - Represent the activation energy and overall energy change in an elementary reaction using a reaction energy profile. 

5.7 Introduction to Reaction Mechanisms - TRA-5.A - Identify the components of a reaction mechanism. 

5.8 Reaction Mechanism and Rate Law - TRA-5.B - Identify the rate law for a reaction from a mechanism in which the first step is rate limiting. 

5.9 Steady-State Approximation - TRA-5.C - Identify the rate law for a reaction from a mechanism in which the first step is not rate limiting. 

5.10 Multistep Reaction Energy Profile - TRA-5.D - Represent the activation energy and overall energy change in a multistep reaction with a reaction energy profile. 

5.11 Catalysis - ENE-1.A - Explain the relationship between the effect of a catalyst on a reaction and changes in the reaction mechanism. 

Kinetics Big Ideas

Big Idea 3: Transformations (TRA)

• Enduring Understanding TRA-3: Some reactions happen quickly, while others happen more slowly and depend on reactant concentrations and temperatures.

• Enduring Understanding TRA-4: There is a relationship between the speed of a reaction and the collision frequency of particle collisions.

• Enduring Understanding TRA-5: Many chemical reactions occur through a series of elementary reactions.  These elementary reactions when combined for a chemical equation.

Big Idea 4: Energy (ENE)

• Enduring Understanding ENE-1: The speed at which a reaction occurs can be influenced by a catalyst.