Chad provides a comprehensive lesson on reaction mechanisms, catalysts, and reaction coordinate diagrams. The lesson begins with an introduction to reaction mechanisms which are the sum of a variable number of elementary reactions. These elementary reactions are identified as unimolecular, bimolecular or termolecular depending on the number of reacting molecules. It is then explained how to identify intermediates and catalysts in a reaction mechanism. Finally, it is demonstrated how to determine the rate law of a reaction from the mechanism.

A complete description of a catalyst is then provided along with a reaction coordinate diagram. Delta H, transition states, intermediates, and activation energy in forward and reverse reactions are identified on reaction coordinate diagrams.

I've embedded this playlist as a lesson on my website with all lessons organized by chapter in a collapsible menu and much of the study guide content included on the page. Check out this lesson at https://www.chadsprep.com/chads-general-chemistry-videos/reaction-coordonnée-diagrams/

If you want all my study guides, quizzes, final exam reviews, and practice exams, check out my general chemistry master's course (free trial available) at https://www.chadsprep.com/genchem-youtube

00:00 Introduction to the lesson
00:42 Reaction mechanisms and elementary reactions
04:50 How to identify intermediates and catalysts in reaction mechanisms
07:28 How to determine the rate law from a reaction mechanism
24:54 Characteristics of catalysts
29:24 Reaction coordinate diagrams

https://www.chadsprep.com/
https://courses.chadsprep.com/pages/pre-health-courses

Please take the opportunity to connect and share this video with your friends and family if you find it useful.