Big Idea: Rates of chemical reactions are determined by the details of the molecular collisions.
Learning Objectives:
Learning objective 4.1 The student is able to design and/or interpret the results of an experiment regarding the factors (i.e., temperature, concentration, surface area) that may influence the rate of a reaction.
Learning objective 4.3 The student is able to connect the half-life of a reaction to the rate constant of a first-order reaction and justify the use of this relation in terms of the reaction being a first-order reaction.
Learning objective 4.4 The student is able to connect the rate law for an elementary reaction to the frequency and success of molecular collisions, including connecting the frequency and success to the order and rate constant, respectively.
Learning objective 4.7 The student is able to evaluate alternative explanations, as expressed by reaction mechanisms, to determine which are consistent with data regarding the overall rate of a reaction, and data that can be used to infer the presence of a reaction intermediate.
Learning objective 4.5 The student is able to explain the difference between collisions that convert reactants to products and those that do not in terms of energy distributions and molecular orientation.
Learning objective 4.6 The student is able to use representations of the energy profile for an elementary reaction (from the reactants, through the transition state, to the products) to make qualitative predictions regarding the relative temperature dependence of the reaction rate.
Learning objective 5.2 The student is able to relate temperature to the motions of particles, either via particulate representations, such as drawings of particles with arrows indicating velocities, and/or via representations of average kinetic energy and distribution of kinetic energies of the particles, such as plots of the Maxwell-Boltzmann distribution.
Learning objective 5.3 The student can generate explanations or make predictions about the transfer of thermal energy between systems based on this transfer being due to a kinetic energy transfer between systems arising from molecular collisions.
Reminders:
Kinetics Quiz Thursday
Lab #11: Due Monday, 2/16 by midnight
*Quizzes: Any quiz can be retaken once on your time (not in class)
Classwork:
SMART Board slides for Week 22 [.pdf]
Lab #11: Reaction Rates and Order [.doc]
Reaction Mechanisms Notes [.PPT]
Video Links: Multistep Reactions and Rate-Determining Step
Simulation: Reaction Rates Capture Sheet [.doc]
PhET Simulation: Link
Kinetics Quiz [.doc]
Homework (assignments for unit): [.doc]
Learning Objectives:
Learning objective 4.1 The student is able to design and/or interpret the results of an experiment regarding the factors (i.e., temperature, concentration, surface area) that may influence the rate of a reaction.
Learning objective 4.3 The student is able to connect the half-life of a reaction to the rate constant of a first-order reaction and justify the use of this relation in terms of the reaction being a first-order reaction.
Learning objective 4.4 The student is able to connect the rate law for an elementary reaction to the frequency and success of molecular collisions, including connecting the frequency and success to the order and rate constant, respectively.
Learning objective 4.7 The student is able to evaluate alternative explanations, as expressed by reaction mechanisms, to determine which are consistent with data regarding the overall rate of a reaction, and data that can be used to infer the presence of a reaction intermediate.
Learning objective 4.5 The student is able to explain the difference between collisions that convert reactants to products and those that do not in terms of energy distributions and molecular orientation.
Learning objective 4.6 The student is able to use representations of the energy profile for an elementary reaction (from the reactants, through the transition state, to the products) to make qualitative predictions regarding the relative temperature dependence of the reaction rate.
Learning objective 5.2 The student is able to relate temperature to the motions of particles, either via particulate representations, such as drawings of particles with arrows indicating velocities, and/or via representations of average kinetic energy and distribution of kinetic energies of the particles, such as plots of the Maxwell-Boltzmann distribution.
Learning objective 5.3 The student can generate explanations or make predictions about the transfer of thermal energy between systems based on this transfer being due to a kinetic energy transfer between systems arising from molecular collisions.
Reminders:
Kinetics Quiz Thursday
Lab #11: Due Monday, 2/16 by midnight
*Quizzes: Any quiz can be retaken once on your time (not in class)
Classwork:
SMART Board slides for Week 22 [.pdf]
Lab #11: Reaction Rates and Order [.doc]
Reaction Mechanisms Notes [.PPT]
Video Links: Multistep Reactions and Rate-Determining Step
Simulation: Reaction Rates Capture Sheet [.doc]
PhET Simulation: Link
Kinetics Quiz [.doc]
Homework (assignments for unit): [.doc]