Chapter 6, Problem 6.46QP

Interpretation Introduction

Interpretation: The most stable form of Oxygen allotrope at the given temperature has to be identified.

Concept Introduction:

The change in enthalpy that is associated with the formation of one mole of a substance from its related elements being in standard state is called standard enthalpy of formation

(${\text{ΔH}}_{\text{f}}\text{°}$).  The standard state condition for the standard enthalpy of formation is that the most stable form of elements or compounds should be at one atmospheric pressure and $\text{25°C}$ .

To identify: The most stable allotrope of Oxygen at $\text{25°C}$