Question

What is entropy in physics

Answer 1

Answer:

Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.

SI unit: joules per kelvin (J⋅K−1)

In SI base units: kg⋅m2⋅s−2⋅K−1