Chapter 3, Problem 3B.1P

Interpretation Introduction

Interpretation: The change in entropy of the given sample, change in entropy of the given surrounding and the total amount of change in entropy have to be calculated.  The given is whether spontaneous or not has to be stated.  The repetition of the calculation for $1.00\text{mol}$ of ${\text{H}}_{\text{2}}\text{O}\left(l\right)$ at $95.0°\text{C}$ 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 entropy that is measured under the standard conditions of temperature is known as standard entropy.  The standard entropy is denoted by $\Delta S$.