Chapter 21, Problem 59IAE

Interpretation Introduction

Interpretation:

The equilibrium constant and the equilibrium partial pressure for the following reaction need to be determined.

${\text{Li}}_2{\text{O}}_{\text{2}}\text{(s)}\underset{}{\to }{\text{Li}}_2\text{O(s)+}\frac{1}{2}{\text{O}}_{\text{2}}\text{(g)}$

Concept introduction:

The equilibrium constant K is used to express the relation between the reactants and the products of a given reaction at equilibrium with respect to some specific unit.

The relation between Gibbs free energy and the equilibrium constant is given by the following equation:

${\text{ΔG}}_{}^{\text{ο}}\text{=-RT lnK}$

Where, ${\text{ΔG}}_{}^{\text{ο}}$ = Change in free energy

R = universal gas constant ( $\text{8}{\text{.3145×10}}^{\text{-3}}\text{kJ/mol}$ )

T = temperature

K = equilibrium constant