Chapter 18, Problem 63GQ

Interpretation Introduction

Interpretation:

It should be identified that increasing or decreasing the temperature for the given reaction will makes it as product favoured.

Concept introduction:

The standard entropy change for any reaction is the sum of standard molar entropies of products, subtracted from the sum of standard molar entropies of reactants. The standard molar entropies are multiplied by the stoichiometric coefficient which is as per the balanced equation.

${\text{Δ}}_{\text{r}}{S}^{\text{°}}=\sum n{S}^{\text{°}}\left(\text{products}\right)-\sum n{S}^{\text{°}}\left(\text{reactants}\right)$

The reaction can be made product-favoured or reactant-favoured depending upon the magnitude and sign of ${\text{Δ}}_{\text{r}}{S}^{\text{°}}$.