Chapter 15, Problem 85IAE

Interpretation Introduction

Interpretation:

Mole fraction of NO₂ in the mixture of NO₂ and N₂O₄ should be determined

Concept introduction:

Equilibrium constant is the ratio between the concentrations of products and reactants of a reversible reaction. Concentrations are raised to the power of coefficient in the balanced equation.

$\begin{array}{l}\text{a A(g) + b B(g) }\rightleftharpoons \text{ c C(g) + d D(g)}\\ K_c=\frac{{\left[\text{C(g)}\right]}^c{\left[\text{D(g)}\right]}^d}{{\left[\text{A(g)}\right]}^a{\left[\text{B(g)}\right]}^b}\end{array}$