Entropy Teacher Resources

Did you know why heat increases entropy? This covers how entropy relates to biology and how it can do some work! [7:01]

Find out about the process that explains why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. Jeff Phillips gives a crash course on entropy.

Clarifying that the thermodynamic definition of Entropy requires a reversible system. [15:38]

Distinguishing between microstates and macro states. How entropy S is defined for a system and not for a specific microstate. [8:56]

Proof that S or entropy is a valid state variable. [15:38]

A discussion of entropy that focuses on explaining entropy, how it applies to the second law of thermodynamics, and real-life observations of the existence of entropy.

A video lecture to explain what entropy is and what it isn't. Two definition of entropy are introduced and explored to show how they can be reconciled. Also investigated is the second law of thermodynamics and its relationship to...

In chemistry, entropy is the measure of molecular randomness, or disorder. Listen to this crash course, and embrace the chaos as Hank teaches about entropy. [13:41]

This informative site is from Georgia State University. The tendency of nature to move towards a more disordered state in an isolated system, a concept known as entropy, is discussed. This concept is well-depicted in meaningful diagrams.

Determine the change in entropy that occurs when heat moves through a barrier that is separating gases at two different temperatures.

Finally we arrive at our quantitative measure of entropy.

At the end of this tutorial, the learner will understand the concepts of entropy and negentropy and will understand that systems gradually move towards entropy unless additional energy is introduced to them. It is 2 of 3 in the series...

At the end of this tutorial, the learner will understand the concepts of entropy and negentropy and will understand that systems gradually move towards entropy unless additional energy is introduced to them. It is 3 of 3 in the series...

An example of a calculation of the change in entropy in a simple chemical reaction.

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and entropy. The specific topic addressed is effect of temperature, volume, and concentration on the entropy.

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and entropy. Other topics covered include standard entropy, gases, and more.

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and entropy. The subject, absolute entropies, is discussed in addition to the third law of thermodynamics, phase...

Explains entropy in a system and how it is measured.

Understand that thermodynamic entropy does not deal with the heat added and the different temperatures at which it is added but rather the reversible heat and temperature to calculate the change in entropy. This video lecture reminds...

A video lecture describing how entropy is a macrostate variable that also describes the number of states a system can take on. The video explains some misconceptions about previous given analogies to describe entropy. [9:30]

University of Nottingham scientists explain what entropy is, using real-life examples in order to illustrate this concept on the molecular level. [4:25]

A video lecture defining a state variable and the characteristics of the value. Understand that to be a valid state variable its value should remained unchanged as it goes around the Carnot cycle. Video shows the math and theory behind...

A video lecture discussing the definition of entropy as the change of states and as the heat added to the system divided by the temperature added. The video reconciles these two definitions by going through examples to explain how they...

An explanation regarding the disorder and organized states that occur as energy is transferred and conserved within systems and reactions. [12:32]