Thermodynamics Path: Heat, Energy and Entropy

High School to Introductory College⏱ ~18 hours4 modules

Thermodynamics governs everything from engines to refrigerators to the fate of the universe. Start with what heat actually is, learn how gases behave, then master the two laws that rule energy — and finish with the engines that power civilization.

Module 1: Heat and temperature

What heat is, how temperature measures it, and why they are different things.

Learn

Heat vs Temperature — What's the Difference?
Specific Heat Capacity — Formula, Water's Value, and Uses

Module 2: Thermal behavior of matter

Expansion, gas laws and the kinetic picture of temperature.

Learn

Thermal Expansion — Why Bridges Have Gaps
Ideal Gas Law — PV = nRT Explained with Examples
Kinetic Theory of Gases — Molecules, Pressure and Temperature

Module 3: The laws of thermodynamics

Energy conservation and the relentless rise of entropy.

Learn

First Law of Thermodynamics — Energy Conservation Explained
Entropy and the Second Law of Thermodynamics

Practice

Heat Practice — Thermodynamics, Specific Heat and Gas Laws

Module 4: Heat engines in the real world

How engines turn heat into work — and why they can never be perfect.

Learn

Heat Engines — How They Work and Their Efficiency Limit

Practice

Heat Practice — Thermodynamics, Specific Heat and Gas Laws