How to Calculate Change in Entropy <br /> <br />Join our amazing group of charismatic chemistry comrades at http://chemin10.com <br /> <br />The Second Law of Thermodynamics says that the universe is moving toward increasing entropy, or disorder. <br /> <br />00:10 Second Law of Thermodynamics <br />00:30 How to predict the change in entropy <br />02:30 Sign of Entropy <br />02:55 Predict Sign of Entropy Change Practice <br />04:37 How to Calculate Change in Entropy Practice Problem <br /> <br />In chemistry, we talk about entropy in terms of chemical reactions. Chemical reactions that result in an increase in entropy are thermodynamically favored, whereas those that result in a decrease in entropy are not. In this video, I teach you how to calculate change in entropy in a reaction. <br /> <br />When you calculate change in entropy, a positive change in entropy means entropy is increasing, and a negative change in entropy means entropy is decreasing. A positive change in entropy is thermodynamically favored. <br /> <br />How can you predict whether a react