Chapter 21, Problem 21.64QP

Interpretation Introduction

Interpretation:  Carbon monoxide ( $\text{CO}$) does not convert totally to carbon dioxide $\text{25}\text{º}\text{C}\text{.}$, the reason for this should be explained.

Concept Introduction:

• Activation energy ( ${\text{E}}_{\text{a}}$) is the minimum amount of energy required in order for a chemical reaction to proceed.
• Equilibrium constant ( ${\text{K}}_{\text{p}}$) : It is the ratio of product of product partial pressure raised to powers of their coefficient to product  of reactant partial pressure raised to powers of their coefficient.

  For a general reaction $\text{aA+}\text{}\text{}\text{}\text{bB}\rightleftarrows \text{cC}\text{+}\text{dD}$,

  ${\text{K}}_{\text{p}}\text{=}\frac{{\text{p}}_{\text{C}}{}^{\text{c}}{\text{p}}_{\text{D}}{}^{\text{d}}}{{\text{p}}_{\text{A}}{}^{\text{a}}{\text{p}}_{\text{B}}{}^{\text{b}}}$ ${\text{p}}_{\text{C}}$, ${\text{p}}_{\text{D}}$, ${\text{p}}_{\text{A}}$ and ${\text{p}}_{\text{B}}$ are the partial vapor pressure of reactant and product respectively.  c, d, a and b are the co-efficient.

  Extent and direction of a reaction can be predicted from the value of equilibrium constant.

To explain: about equilibrium constant.