Entropy

A measure of disorder in a system and the unavailability of energy to do work.

The law of thermodynamics that introduces entropy

The type of process where entropy remains constant

The process where entropy increases due to irreversibilities

The SI unit of entropy

Entropy per unit mass

The term for energy that is unavailable to do work.

An increase in this signifies greater disorder in a system

The type of process where entropy remains unchanged because there is no heat transfer.

• The measure of entropy generated due to irreversibilities.