Chapter 3, Problem 3.2IA

Interpretation Introduction

Interpretation: The relation between the thermodynamic and statistical definitions of entropy has to be stated.

Concept introduction: The randomness present in the system is called its entropy.  It is an extensive property.  At equilibrium, the entropy of the system is zero.  It is denoted by $S$.  The thermodynamic expression for entropy is,

    $\text{d}S=\frac{\text{d}{q}_{\text{rev}}}{T}$

Where,

• $S$ is the entropy.
• $q_{\text{rev}}$ is the heat transferred reversibly to the system.
• $T$ is the temperature.