Chapter 13, Problem 13.70AQAP

Interpretation Introduction

Interpretation:

To determine the molar concentration of H₂ at equilibrium.

Concept introduction:

Equilibrium constant may be defined as the ratio of product of concentration of products with the product of concentration of reactants and each concentration term has raised to the power equals to their respective stoichiometric coefficient.

Mathematically,

  $\begin{array}{l}\text{If}\text{the}\text{chemical}\text{reaction}\text{is:}\\ \text{aA}\text{+}\text{bB}\stackrel{}{\to }\text{cC}\text{+}\text{dD}\\ \text{then,}\\ {\text{K}}_c\text{=}\frac{{\text{[C]}}^{\text{c}}{\text{[D]}}^{\text{d}}}{{\text{[A]}}^{\text{a}}{\text{[B]}}^{\text{b}}}\end{array}$

Concentration of solid components is always taken as unity.