Khan Academy on a Stick
Thermodynamics

Thermodynamics (part 1)
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Intuition of how gases generate pressure in a container and why pressure x volume is proportional to the combined kinetic energy of the molecules in the volume.

Thermodynamics (part 2)
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Example problem that pv=pv. Introduction to temperature.

Thermodynamics (part 3)
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Introduction to Kelvin. Example of a problem involving the ideal gas law

Thermodynamics (part 4)
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Introduction to the concept of a mole. Universal gas constant R. PV=nRT

Thermodynamics (part 5)
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Example problem involving PV=nRT

Macrostates and Microstates
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The difference between macrostates and microstates. Thermodynamic equilibrium.

Quasistatic and Reversible Processes
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Using theoretically quasistatic and/or reversible processes to stay pretty much at equilibrium.

First Law of Thermodynamics/ Internal Energy
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First law of thermodynamic and Internal Energy

More on Internal Energy
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Getting more intuition of internal energy, heat, and work

Work from Expansion
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How a system can do work by expanding

PVdiagrams and Expansion Work
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Why work from expansion is the area under the curve of a PVdiagram

Proof: U=(3/2)PV or U=(3/2)nRT
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Conceptual proof that the internal energy of an ideal gas system is 3/2 PV.

Work Done by Isothermic Process
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Isothermic and Adiabatic processes. Calculating the work done by an isothermic process. Seeing that it is the same as the heat added.

Carnot Cycle and Carnot Engine
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Introduction to the Carnot Cycle and Carnot Heat Engine

Proof: Volume Ratios in a Carnot Cycle
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Proof of the volume ratios in a Carnot Cycle

Proof: S (or Entropy) is a valid state variable
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Proof that S (or entropy) is a valid state variable.

Thermodynamic Entropy Definition Clarification
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Clarifying that the thermodynamic definition of Entropy requires a reversible system.

Reconciling Thermodynamic and State Definitions of Entropy
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Long video explaining why entropy is a measure of the number of states a system can take on (mathy, but mindblowing).

Entropy Intuition
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A discussion of what entropy is and what it isn't.

Maxwell's Demon
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Maxwell's Demon: A thought experiment that seems to defy the 2nd Law of Thermodynamics

More on Entropy
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More clarification as to what entropy is and what entropy is not.

Efficiency of a Carnot Engine
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Definition of efficiency for a heat engine. Efficiency of a Carnot Engine.

Carnot Efficiency 2: Reversing the Cycle
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Seeing how we can scale and or reverse a Carnot Engine (to make a refrigerator)

Carnot Efficiency 3: Proving that it is the most efficient
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Proving that a Carnot Engine is the most efficient engine

Enthalpy
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Understanding why enthalpy can be viewed as "heat content" in a constant pressure system.

Heat of Formation
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Standard heat of formation or standard enthalpy change of formation.

Hess's Law and Reaction Enthalpy Change
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Using Hess's Law and standard heats of formation to determine the enthalpy change for reactions

Gibbs Free Energy and Spontaneity
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Intuition behind why spontaneity is driven by enthalpy, entropy and temperature. Introduction to Gibbs free energy.

Gibbs Free Energy Example
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Determining if a reaction is spontaneous by calculating the change in Gibbs Free Energy.

More rigorous Gibbs Free Energy/ Spontaneity Relationship
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More formal understanding of why a negative change in Gibbs Free Energy implies a spontaneous, irreversible reaction.

A look at a seductive but wrong Gibbs/Spontaneity Proof
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A look at why the "proof" of the relation between changes in Gibbs Free Energy and Spontaneity is wrong in many textbooks.

Stoichiometry Example Problem 1
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Figuring grams of reactants and product produced from reaction of phosphorous and chlorine

Stoichiometry Example Problem 2
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Stoichiometry Example Problem 2

Limiting Reactant Example Problem 1
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Limiting Reactant Example Problem 1

Empirical and Molecular Formulas from Stoichiometry
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Empirical and Molecular Formulas from Stoichiometry

Example of Finding Reactant Empirical Formula
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Example of Finding Reactant Empirical Formula

Stoichiometry of a Reaction in Solution
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Stoichiometry of a Reaction in Solution

Another Stoichiometry Example in a Solution
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Another Stoichiometry Example in a Solution

Molecular and Empirical Forumlas from Percent Composition
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Molecular and Empirical Forumlas from Percent Composition. Example 2.9 from Kotz Chemistry book

Hess's Law Example
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Hess's Law Example