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Kinetics, Rate Laws, Reaction Mechanism

  • Define rate of reaction for given reactions in terms of reactants and products

  • Rate law as experimental observation of effects of changing concentrations on rates

  • Order of reaction: exponent in rate law expression for component

  • Overall order = sum of individual orders

  • Integrated rate expressions for first and second order reactions; how to plot them

  • First order: t versus ln[concn]; second order t versus 1/[concn]

  • A reaction mechanism is a hypothesis to explain observed rate laws

  • Elementary reactions are hypothetical; add together to get mechanism and overall rate law

  • Learn to interpret some simple rate laws in terms of elementary reactions, for example RBr reacting with OH- where R = ethyl; and tert-butyl

  • Rate limiting or slowest step limits observed rate of a multi-stage reaction

Kinetics, Rate Laws, Reaction Mechanism

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Advanced Placement Chemistry