Kinetics Branch of chemistry that deals with the rates of chemical reactions TOPIC 8 Review Book

Collision Theory In order for a chemical reaction to occur, particles must have EFFECTIVE COLLISIONS Effective collisions must occur for old bonds to be broken and new bonds to be formed What is an effective collision? An effective collision must have enough energy and the proper orientation https://www.youtube.com/watch?v=mBTSwJnZ6Sk

Factors that Affect the Rate of Reaction Nature Covalently bonded react more slowly than ionic because there are more bonds to break Concentration If concentration of one or more reactants is increased, reaction rate increases Surface area Greater surface area = faster reaction rate Pressure Increase in pressure = increase in reaction rate of GASES Catalyst Increase reaction rate by providing alternate pathway Temperature Increase temperature = increased reaction

Catalyst Example of a Pt catalyst Catalysts typically impact the mechanism of reaction Temporary associations allow for the reaction to occur Catalysts are reused

Potential energy diagrams

Potential Energy Diagrams

Potential Energy Diagram

Practice Practice Practice

Practice practice practice

Practice Practice Practice

https://www.youtube.com/watch?v=acZOZU 9XwmM