14.2 Rate Laws | General Chemistry
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 Published On Jan 18, 2022

Chad provides a comprehensive lesson on Rate Laws and how to calculate a rate law from a table of kinetic data. The lesson begins with an introduction to what a rate law looks like including the rate constant, k, the reactant orders, and the overall order of reaction. A description of reactant order and the overall order of reaction is provided. The rate of reaction is not affected by the concentration of a zero order reactant. The rate of reaction is proportional to the concentration of a first order reactant. The rate of reaction is proportional to the square of the concentration of a second order reactant. Finally, the overall order of reaction is equal to the sum of the individual reactant orders.

Chad then shows how to calculate the rate law from a table of experimental data. He explains how to recognize which trials to compare to determine a particular reactant's order and then how to perform the calculation. Once all the individual reactant orders have been calculated, he then shows how to calculate the rate constant. Depending upon the overall order of reaction, the unit of the rate constant vary. Chad also shows how to find rate constant units and an easy way to remember the units for each order of reaction.

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

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00:00 Lesson Introduction
00:42 Rate Laws, Rate Constants, and Reaction Orders
03:21 Zero Order Reactants, 1st Order Reactants, 2nd Order Reactants
09:21 How to Calculate a Rate Law from a Table of Experimental Data
18:30 How to Calculate the Rate Constant
21:20 How to Find Rate Constant Units

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