Editing revision 5 of Kinetics Notes 1

ChemistryWiki | RecentChanges | Preferences

Editing old revision 5. Saving this page will replace the latest revision with this text.

<center>Two Pillars of Chemical Reactions : Kinetic and Thermodynamics</center>
 
In a chemical reaction, there are three questions that are commonly asked? 
 
1. Does this chemical reaction occur? 
2. How fast is the chemical reaction or how fast are the products formed (called rate of reaction)? 
3. How do the reactants rearrange to make the product (called reaction mechanism) 
 
Thermodynamics is the study of the movement (-dynamic) of heat/energy (thermo-) in chemical reaction. Almost all chemical reaction have either a total gain of heat/energy (or total loss of heat/energy) as the chemical reaction proceeds. This change in heat/energy determines if the chemical reaction occurs or not. Therefore, Thermodynamics answers Question #1 or does the chemical reaction occurs or not. It does not. however, explain how fast or the reaction mechanism of the chemical reaction. 
 
How fast and what is the reaction mechanism for a chemical reaction is the domain of Kinetics. Therefore, Kinetics answers Question #2 & #3 and will be the topic we will deal with now. 
 
 
?Why do reactants form products? Smashmouth approach (called Collision Theory)
-------
<center>Collision Theory</center> 
Rate of the chemical reaction: 
Units of Rate: 
http://www.tmcleod.org/Level1/basicpotentailenergydiagram.png
 
Activation Energy: 
Activated Complex:

Why do reactants form products? 
 
Effective Collisions 
 
Two factors for a effective collision: 
a. 
b.

View other revisions
ChemistryWiki | RecentChanges | Preferences