Quizlet Chem-Kinetics

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  1. Activated Complex: Intermediate phase between reactants and products which is short-lived, has high energy and is very unstable.
  2. Activation energy: The minimum amount of energy needed to cause a reaction.
  3. catalyst: Unchanged in a reation which speeds up the reaction rate and lowers activation energy.
  4. collision theory: In order for a reaction to occur, the reactants must collide with enough KE and the proper angle.
  5. Concentration: Increase reaction rate, and frequency of collisions
  6. Effective Collision: causes a reaction with the right amount of KE.
  7. Endothermic: absorb energy on the left.
  8. enthalpy: The potential energy in a reaction
  9. Exothermic: release energy on the right
  10. Heat of reaction: Change of heat-Potential Energy of product minus Potential energy of reaction
  11. kinetics: the rate of chemical reactions and the mechanisms by which they occur.
  12. pressure: gasses-increase reaction rate and collisions
  13. Reaction Mechanism: The sequence of reactions by which a chemical change occurs
  14. Speed up reaction: increase temperature, increase pressure, catalyst, gasses, increase concentration, increase surface area.
  15. Temperature: Increase Kenetic Energy and reaction rate.