Entropy and the Direction of Change

Entropy is a key idea in thermodynamics, the study of heat and energy. It connects to the second law of thermodynamics, which says that the entropy of a system always increases over time or stays constant in ideal cases. That constant change can happen in a steady state or during a reversible process.

Entropy is a fundamental thermodynamic principle used to describe heat transfer in a system.

The term Entropy is often considered a measure of the "disorder" of a system and the second law of thermodynamics states that if the system is undergoing an irreversible process, then the entropy of the system will always increase.

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