The chemical reaction rate is discussed. The rate is defined as change in concentration divided by the change in time. The following example reaction is used - hydrogen (H2) reacts with iodine (I2) to form product hydrogen iodide (HI). Experimental concentration data (concentrations recorded after every 10 seconds) is used to calculate the average reaction rate over each 10 second interval. The relationship between the rates of change for reactants versus products are pointed out and compared with the stoichiometry of the reaction. Also, concentration is plotted versus time on a graph and the connection between rates and slopes is pointed out. Also instantaneous rates are compared with average rates.

General Chemistry II - Lecture 11 - The Rate Of A Chemical Reaction

These videos are being made because I love teaching general chemistry. Also, I want to provide clear videos that are captioned for the deaf and hard-of-hearing, as well as for international students who use English as a second language (ESL). These video lectures are being used to assess such students as well as hearing students. However, any student of general chemistry should find the lectures very useful. Clear and concise explanations, colorful notes, and simple diagrams are used. All videos are uploaded under the Creative Commons license, so please feel free to use them in any way you.

These videos are hard work on my part, and I enjoy making them. If you continue to watch, then you will not only learn chemistry, but also some interesting things about the state of Hawai'i. Each video normally begins with a short clip taken on location, from somewhere in the Hawaiian Islands. And if you are on the island of O'ahu or happen to visit, then please feel free to stop by Leeward Community College say hello.
Enjoy and Aloha !!!

JAT

Jeffrey A Tibbitt, Ph.D
Lecturer of Chemistry
Office PS-206, (808) 455-0264
jtibbitt@hawaii.edu
Leeward Community College
Pearl City, Hawai'i

** English Captions **

1. Introduction
2. Review Of General Chemistry 1
3. Intermolecular Forces And Phases Of Matter
4. Phase Change Calculations
5. Phase Changes I - Vapor Pressure
6. Phase Changes II - Phase Diagrams
7. Crystal Lattices of Solid Structures
8. Solution Concentrations
9. Solution Formation
10. Solubility of a Solute
11. The Colligative Properties Of Solutions
12. The Rate Of A Chemical Reaction
13. The Differential Rate Law
14. The Integrated Rate Law
15. Rate, Temperature And The Arrhenius Equation

This collection of 15 lectures with Prof. Tibbitt a community college in Hawaii takes you through all the fundamentals of general chemistry covered in college. His lectures are presented in a blackboard, with colorful and beautiful calligraphy.