General Chemistry - Equilibrium Constants | 15.1 General Chemistry

Chad provides a comprehensive lesson on Equilibrium and Equilibrium Constants. First, what is meant by a dynamic equilibrium. When a reaction reaches equilibrium, it is not that the reaction has stopped completely, it is just that it is proceeding in both the forward and reverse directions at the same rate (Forward Rate = Reverse Rate). Second, equilibrium constants (K) and the law of mass action are introduced. Equilibrium constant expressions are first defined as the ratio of the concentrations of products to reactants and how that typically only aqueous and gaseous species are included. The difference between Kc and Kp is also explained as the equilibrium constant can be written in terms of molar concentrations or partial pressures for reactions involving gases. How to calculate Kp having been given Kc is also demonstrated using a provided equation. Finally, being given an equilibrium constant for a reaction, it is shown how to determine the equilibrium constant for reactions that are related to the first by a simple stoichiometric ratio (reducing all coefficients by half for instance). 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-general-chemistry-videos/equilibrium-constants/ If you want all my study guides, quizzes, final exam reviews, and practice exams, check out my General Chemistry Master Course at https://www.chadsprep.com/genchem-youtube 00:00 Lesson Introduction 00:28 Introduction to Dynamic Equilibrium 02:36 Introduction to Equilibrium Constants 14:42 Kc vs Kp 22:22 Calculating Equilibrium Constants of Related Reactions https://www.chadsprep.com/ #generalchemistry #chemistrytutorial