1. Entropy: Embrace the chaos
Life is chaos and the universe tends toward disorder. But why? If you think about it, there are only a few ways for things to be arranged in an organized manner, but there are nearly infinite other ways for those same things to be arranged. Simple rules of probability dictate that it's much more likely for stuff to be in one of the many disorganized states than in one of the few organized states. This tendency is so unavoidable that it's known as the 2nd Law of Thermodynamics. Obviously, disorder is a pretty big deal in the universe and that makes it a pretty big deal in chemistry - it's such a big deal that scientists have a special name for it: entropy. In chemistry, entropy is the measure of molecular randomness, or disorder. For the next thirteen minutes, Hank hopes you will embrace the chaos as he teaches you about entropy. Writers: Edi Gonzalez Chief Editor: Blake de Pastino Consultant: Dr. Heiko Langner Director/Editor: Nicholas Jenkins Sound Designer: Michael Aranda Graphics: Thought Cafe
2. Work done by isothermic process
Isothermic and adiabatic processes. Calculating the work done by an isothermic process and seeing that it is the same as the heat added.
5. Proof: S (or entropy) is a valid state variable
Proof that S (or entropy) is a valid state variable.
6. Thermodynamic entropy definition clarification
Clarifying that the thermodynamic definition of Entropy requires a reversible system.
7. Reconciling thermodynamic and state definitions of entropy
Long video explaining why entropy is a measure of the number of states a system can take on (mathy, but mind-blowing).
8. Entropy intuition
Introduces second law of thermodynamics. A discussion of entropy change in terms of heat and microstates .
9. Maxwell's demon
Maxwell's Demon: A thought experiment that seems to defy the 2nd Law of Thermodynamics
10. More on entropy
Distinguishing between microstates and macro states. How entropy S is defined for a system and not for a specific microstate.