Thermodynamics

Definition

Thermodynamics is the branch of physics that deals with the relationships between heat, energy, and work.

Related terms

First Law of Thermodynamics (Law of Conservation of Energy): Energy cannot be created or destroyed; it can only change forms.

Second Law of Thermodynamics (Law of Increased Entropy): In any spontaneous process, the total entropy (disorder) always increases over time.

Third Law of Thermodynamics: As temperature approaches absolute zero, the entropy approaches a minimum value for perfect crystalline substances.