Chapter 3, Problem 3.20E

Interpretation Introduction

Interpretation:

The change in entropy for $\text{2}\text{.50}\text{moles}$ of $\text{Au}$ if the temperature changes reversibly from $\text{22}\text{.0}°\text{C}$ to $\text{1000}°\text{C}$ is to be predicted.

Concept introduction:

The term entropy is used to represent the randomness in a system. When a system moves from an ordered arrangement to a less order arrangement, then the entropy of the system increases. The change in entropy is given as,

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

Where,

• $q_{\text{rev}}$ represents the heat exchange.

• $T$ represents the temperature.