Chapter 8.2, Problem 2TY

Interpretation Introduction

Interpretation:

The equilibrium expression for the given reaction has to be given.

Concept introduction:

Equilibrium expression:

The ratio between the products and the reactants is given by equilibrium expression,

$\begin{array}{l}\text{aA}\text{+}\text{bB}\stackrel{}{\rightleftharpoons }\text{cC}\text{+}\text{dD}\\ \text{reactants}\text{products}\\ \text{General}\text{form}\text{of}\text{equilibrium}\text{constant}\left(\text{K}\right)\\ \text{K}\text{=}\frac{{\text{A}}_{\text{C}}{}^{\text{c}}{\text{A}}_{\text{D}}{}^{\text{d}}}{{\text{A}}_{\text{A}}{}^{\text{a}}{\text{A}}_{\text{B}}{}^{\text{b}}}\text{=}\frac{{\left[\text{C}\right]}^{\text{c}}{\text{γ}}_{\text{C}}{}^{\text{c}}{\left[\text{D}\right]}^{\text{d}}{\text{γ}}_{\text{D}}{}^{\text{d}}}{{\left[\text{A}\right]}^{\text{a}}{\text{γ}}_{\text{A}}{}^{\text{a}}{\left[\text{B}\right]}^{\text{b}}{\text{γ}}_{\text{B}}{}^{\text{b}}}\\ \text{where,}\\ \text{A}\text{-}\text{activity}\text{of}\text{species}\\ \left[\right]\text{-}\text{concentration}\text{of}\text{species}\\ \text{γ}\text{-}\text{activity}\text{coefficient of species}\text{.}\end{array}$