Chapter 16, Problem 58QRT

Interpretation Introduction

Interpretation:

The value of ${\Delta }_{\text{r}}G°$ for the reaction of sand with hydrogen has to be calculated.  An explanation as to why hydrogen fluoride attacks glass, whereas hydrogen chloride does not has to be stated.

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 second law of thermodynamics state that “the entropy of the system either increases or remains the same.”