Chapter 1, Problem 1.28P

(a)

Interpretation Introduction

Interpretation:

The given pressure of A and E has to be expressed in bars.

Concept Introduction:

Formula for Conversion of Units:

  $\begin{array}{l}\text{1 Pa }{\text{= 10}}^5\text{ bar}\\ 1\text{ bar}\text{= }\frac{\text{Pa}}{{10}^5}\\ 1\text{ bar}\text{=}\frac{\text{Torr}}{750.06}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The equilibrium constant for the given reaction has to be found.

Concept Introduction:

Equilibrium constant: At equilibrium the ratio of products to reactants (each raised to the power corresponding to its stoichiometric coefficient) has a constant value, K

For a general reaction,

  $\text{aA+bB}\rightleftarrows \text{cC+dD}$

  $\text{Equilibrium}\text{constant}\text{K}\text{=}\frac{{\left[\text{C}\right]}^{\text{c}}{\left[\text{D}\right]}^{\text{d}}}{{\left[\text{A}\right]}^{\text{a}}{\left[\text{B}\right]}^{\text{b}}}$

The concentration of solids and pure liquids do not change, so their concentration terms are not included in the reaction quotient expression.