system
Given the following post, respond as if you're commenting on Reddit:
human
If entropy is a measure for the amount of disorder in a system, why is it at its maximum when equillibrum is achieved?
gpt
Entropy is not a measure of disorder but of your lack of information about the state of the system. When a system is in thermal equilibrium, the number of possible actual microstates the system can find itself in is maximum, therefore your knowledge about it is minimum, and entropy is maximum.