Elementary and Advanced Thermodynamics

The first part is an undergraduate course with many worked exercises, covering the vocabulary, formalism, and fundamental principles of thermodynamics, the study of gases and phase transitions, and heat engines and thermal cycles. The following parts explore more advanced topics: differential geometry in thermodynamics, Maxwell's demon, endoreversibility, climate physics, thermoelectricity, near-equilibrium thermodynamics (Onsager relations, etc.), and quantum thermodynamics.

Elementary and Advanced
Thermodynamics
2026

Contents

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Lesson 01

General Introduction

Why study thermodynamics: heat-to-work conversion, heat engines, energy sources, and contemporary stakes.

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Lesson 02

A History of Thermodynamics

From Hero's aeolipile to Carnot, Mayer, and Clausius: the birth of thermodynamics and entropy.

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Lesson 03

Fundamental Concepts

Equilibrium, the zeroth law, walls, state variables and functions, and quasi-static transformations.

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Lesson 04

Energy Conservation: The First Law

Work, heat, internal energy, and the first law.

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Lesson 05

Reversibility and Irreversibility: The Second Law

Entropy, reversibility, and the second law.

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Lesson 06

Mathematical Structure: The Fundamental Relations

Fundamental relations and thermodynamic potentials.

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Lesson 07

Formal Structure: Changes of Variables

Differential calculus, the Legendre transform, and thermodynamic potentials.

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Lesson 08

Calorimetric and Thermoelastic Coefficients

Calorimetric and thermoelastic coefficients, and equations of state.

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Lesson 09

Phase Transitions

Phase diagrams, instabilities, and the Van der Waals gas.

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Lesson 10

Heat Engines

Two-reservoir cycles, the Carnot cycle, efficiencies, and statements of the second law.

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Lesson 09

Differential Geometry in Thermodynamics

The geometric structures underlying thermodynamics.

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Lesson 10

Maxwell's Demon

Information, entropy, and the limits of classical thermodynamics.

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Lesson 11

Endoreversible Cycles

Efficiency at maximum power and real heat engines.

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Lesson 12

Thermoelectricity

Thermoelectric effects and energy conversion.

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Lesson 13

Non-Equilibrium Thermodynamics

Irreversible phenomena and Onsager's relations.

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Lesson 14

Climate and Thermodynamics

Thermodynamic applications to Earth's climate system.

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Lesson 15

Quantum Thermodynamics

Work, heat, and entropy at the quantum scale.

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