SC CHEM 102 - Kinetics, Collision Theory, Catalysis and Oxidation Reduction (4 pages)

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Kinetics, Collision Theory, Catalysis and Oxidation Reduction



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Kinetics, Collision Theory, Catalysis and Oxidation Reduction

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Chem 102 lecture 6 notes on Kinetics, Collision Theory, Catalysis and Oxidation Reduction


Lecture number:
6
Pages:
4
Type:
Lecture Note
School:
University Of South Carolina-Columbia
Course:
Chem 102 - Fundamental Chemistry Ii
Edition:
1

Unformatted text preview:

CHEM 102 2nd Chapter Lecture 6 Outline of Last Lecture I Chemical Equations a Definition b Balancing Chemical Equations II Neutralization Reactions a Definition b Reactants and Products c Strong acids and bases III Oxidation Reduction a Definition IV Precipitation Reactions A Definition just know what they are for the exam Outline of Current Lecture I Watched Lab Safety Video You need to speak to the professor if you missed it II Kinetics a Defintion b Symbols III Collision Theory a Definition b Three things that must happen IV Catalysis a Definition These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute V Oxidation Reduction More in depth Current Lecture Kinetics Kinetics the study of rates of chemical reactions how fast a reaction happens Rate the change of concentration per unit time To calculate rate divide delta C Concentration by delta t time C rate t Collision Theory Collision Theory the reaction rate is proportional to the collision frequency Z the number of molecular collisions per second Z depends on the temperature and concentration of the colliding molecules Not all molecular collisions result in the formation of products Three things must happen for a reaction when molecules collide 1 The compounds molecules must touch 2 They must have proper orientation a I e they must fit together 3 They must collide with enough energy to create a reaction Activation Energy Ea the minimum collision energy required for reaction to occur Activation Complex the highest energy arrangement of atoms that occurs in the course of the reaction the reaction will happen Catalysis Catalysis a substance which increases the reaction rate but is not consumed in the reaction added to boost the activation energy provides an alternate reaction path with a lore activation energy More on Catalysis in next set of notes Oxidation Reduction A molecule is oxidized if 1 O is added to the molecule



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