Thermodynamics
Thermodynamics sits at the center of physics, chemistry, and engineering because it describes what happens when energy is transferred as heat or work. This path starts with a clear reference overview, then moves into phase behavior and thermal systems, before letting you test the ideas in a lab. By the end, the laws of thermodynamics should feel less like memorized rules and more like tools for predicting real systems.
Learning Path
Thermodynamics & Heat Transfer
A compact overview of heat, work, internal energy, and the main ways energy moves through a system.
Open →Phase Diagram & Heating Curve Explorer
Trace phase transitions and connect temperature, pressure, and energy across heating and cooling changes.
Open →Thermodynamics Lab
Investigate how thermal energy, state variables, and spontaneous change relate in a controlled virtual setting.
Open →Thermodynamics Essentials
Keep these core ideas in view as you study:
- First law: energy is conserved, so changes in internal energy come from heat and work.
- Second law: entropy tends to increase, and natural processes have a preferred direction.
- State functions like internal energy, enthalpy, entropy, and Gibbs free energy help predict spontaneity.
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Common Questions
What is the difference between heat and temperature?
Heat is energy transferred because of a temperature difference, while temperature measures the average kinetic energy of particles in a system.
Why are phase changes important in thermodynamics?
During melting, boiling, and condensation, energy changes the arrangement of particles instead of raising temperature, so latent heat is a key thermodynamic concept.