The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time. It implies that natural processes tend to move towards a state of maximum disorder or entropy.
5 Must Know Facts For Your Next Test
Entropy always increases in an isolated system; it never decreases.
Heat engines cannot be 100% efficient due to unavoidable entropy production.
The second law explains why perpetual motion machines of the second kind are impossible.
A heat engine's efficiency is limited by the temperatures of its heat reservoirs, as described by Carnot's theorem.
The second law can be restated using Kelvin-Planck and Clausius statements.