The Laws of Thermodynamics

The laws of thermodynamics describe how energy behaves in systems. The first law states energy cannot be created or destroyed, only transferred or changed forms—like burning fuel releasing heat and work. The second law says that in natural processes, disorder, or entropy, tends to increase, meaning systems become more spread out and less organized over time. The third law states that as temperature approaches absolute zero, a system's entropy approaches a minimum, making it perfectly ordered. Together, these laws explain how energy moves, transforms, and the limits of efficiency in processes like engines and refrigerators.