Question

explain about entropy of system.

Answer 1

Entropy $S$ - a physical quantity used to describe a thermodynamic system, is one of the main thermodynamic quantities. Entropy is a function of the state of a thermodynamic system and is widely used in thermodynamics. The statement about the existence and growth of entropy and the list of its properties constitute the content of the second law of thermodynamics. Entropy is also called a measure of chaos. The entropy $S$ of a thermodynamic system is defined as a quantity proportional to the natural logarithm of the number of different microstates $L$ corresponding to a given macroscopic state.