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Chapter 6: Chemical Reactivity and Mechanisms – Thermodynamics, Kinetics, and Reaction Mechanisms in Organic Chemistry

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Enthalpy

  • How to calculate enthalpy using bond dissociation energies.
    04:09
  • Calculating Enthalpies
    04:38

Entropy

  • 3 ways to increase entropy.
    07:11
  • Explaining what entropy is.
    02:46

Gibbs Free Energy

  • Intermediates vs. Transition States
    06:55
  • Breaking down the different terms of the Gibbs Free Energy equation.
    05:02

Equilibrium Constant and pKa

  • The pH scale vs. the pKa scale.
    02:15
  • The relationship between equilibrium constant and pKa.
    02:19
  • Why we use pKa instead of pH.
    01:46

Reaction Mechanism

  • How to tell if charged molecules will react as nucleophiles or electrophiles.
    02:39
  • Nucleophile or Electrophile
    01:49
  • How to tell if uncharged molecules will react as nucleophiles or electrophiles.
    02:48

Carbocation Intermediates – Stability

  • Determining Carbocation Stability
    05:58
  • Predicting the most stable carbocation
    01:21

Carbocation Intermediate – Rearrangements

  • Alkyl Shift
    03:43
  • Understanding why carbocations shift.
    00:47
  • Hydride Shift
    03:34

Introduction to Substitution

  • Predict the product
    05:55
  • Nucleophiles and Electrophiles can react in Bronsted-Lowry Reactions.
    05:01
  • Nucleophiles and Electrophiles can react in Substitution Reactions.
    01:47

Leaving Groups

  • Predict the best leaving group
    00:50
  • Predict the best leaving group
    01:12
  • Predict the best leaving group
    00:36

Nucleophiles and Basicity

  • Understanding the difference between basicity and nucleophilicity.
    06:21

Hammond Postulate

  • Defining the Hammond Postulate.
    01:30
  • Bromination explains the Hammond Postulate.
    02:58
  • Chlorination explains the Hammond Postulate.
    05:23

Energy Diagram

  • Favorability and rate of Free Energy Diagrams
    01:14
  • Favorability and rate of Free Energy Diagrams
    00:34
  • Favorability and rate of Free Energy Diagrams
    02:18