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Introduction
Prerequisite Knowledge
Learning Objectives
Spontaneous Processes
2nd Law of Thermodynamics
What is entropy?
Molecules interact and transfer energy
Distributing Energy
Possible sums for a pair of dice
Dice combinations for each sum
Heat Diffusion Set-up
Vibrations in a solid
Energy transfer
Evaluating entropy change
How many different microstates (2)?
Change in Entropy
To Review
Introduction to entropy
Comparing two rooms to understand entropy
Comparing the moon and the sun to understand entropy
Explanation of entropy as the number of states a system can take on
Comparing two systems with different numbers of molecules
Revisiting the two rooms with a new understanding of entropy
Revisiting the moon and the sun with a new understanding of entropy
Summary of the importance of entropy
What is Entropy?
The Carnot Cycle
Statistical mechanics and entropy
Macrostates are defined by thermodynamic properties
Microstates and macrostates
Thermal equilibrium
Order is not low entropy
Information Entropy
Statistical mechanics inevitably leads to entropy
Entropy drives the increase and decay of complexity
Which of the following processes is non-spontaneous?
Gasoline Example
Microstates
Which State is More Favorable?
Coin Flip Example
Probability of a Disorganized State
Change in Entropy
Identify each statement as true or false for a system undergoing an exothermic spontaneous reaction
Exothermic Process
Conclusion
Which of the following processes is non-spontaneous?
Gasoline Example
Microstates
Which State is More Favorable?
Coin Flip Example
Probability of a Disorganized State
Change in Entropy
Identify each statement as true or false for a system undergoing an exothermic spontaneous reaction
Exothermic Process
Conclusion