एन्ट्रोपी को विस्तार से परिभाषित करें।

Entropy Definition & Laws: Thermodynamic state function ($S$) measuring the degree of molecular disorder or randomness in a system ($dS =$$\frac{dQ_{rev}}{T}$). 2nd Law of Thermodynamics: Total entropy of an isolated system always increases ($dS_{univ} > 0$).