Chapter 3, Problem 3B.7P

Interpretation Introduction

Interpretation: The change in entropy of copper in thermal contact with electric heater under given conditions has to be calculated.  The change in entropy of copper and water at $293\text{K}$ under given conditions has to be calculated.

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 change is denoted by $\Delta S$.