key term - Entropy Change

Definition

Entropy change refers to the measure of disorder or randomness in a system. It's the difference in entropy (disorder) between the final and initial states in a process.

Related terms

Isolated System:

A system that does not exchange matter or energy with its surroundings.

Second Law of Thermodynamics:

This law states that the total entropy of an isolated system can never decrease over time, and is constant if and only if all processes are reversible.

Gibbs Free Energy:

A thermodynamic potential that measures the maximum reversible work that a system can perform at constant temperature and pressure.