Chapter 4, Problem 4F.3E

(a)

Interpretation Introduction

Interpretation:

The change in the entropy of copper block at $25°\text{C}$ has to be determined.

Concept Introduction:

The degree of randomness in a system is the measured in terms of entropy.  Higher the entropy greater will be the disorder in the system.   The mathematical expression for the calculation of entropy of the system is shown below.

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

(b)

Interpretation Introduction

Interpretation:

The change in the entropy of copper block at $100°\text{C}$ has to be determined.

Concept Introduction:

Same as part (a).

(c)

Interpretation Introduction

Interpretation:

The difference in the change in the entropy of the copper block has to be explained.

Concept Introduction:

Same as part (a).