Chapter 17, Problem 17.25P

Interpretation Introduction

Interpretation:

The condition at which ${\text{K}}_{\text{p}}$ and ${\text{K}}_{\text{c}}$ are equal and not equal has to be explained.

Concept Introduction:

The equilibrium constant in terms of concentration ${\text{K}}_{\text{c}}$ and in terms of partial pressure ${\text{K}}_{\text{p}}$ are related by an equation given below.

${\text{K}}_{\text{p}}{\text{ = K}}_{\text{c}}{\left(\text{RT}\right)}^{{\text{Δn}}_{\text{gas}}}$

Where,

    $\begin{array}{l}{\text{K}}_{\text{p}}\text{= equilibrium constant in terms of pressure}\\ {\text{K}}_{\text{c}}\text{= equilibrium constant in terms of concentration}\\ {\text{Δn}}_{\text{gas}}\text{= number of moles gaseous products - number of moles gaseous reactants}\\ \text{R = universal gas constant}\end{array}$