Chapter 17, Problem 17.37P

Interpretation Introduction

Interpretation:

For the reaction, $\text{2NOBr(g) }\stackrel{}{\rightleftharpoons }{\text{ 2NO}}_{\text{(g)}}{\text{ + Br}}_{\text{2(g)}}$ whether the given reaction condition is at equilibrium or not has to be determined.  If not, the direction to which the reaction will proceed has to be given.

Concept Introduction:

Comparison of ${\text{Q}}_{\text{p}}{\text{ and K}}_{\text{p}}$ :

When ${\text{Q}}_{\text{p}}{\text{ < K}}_{\text{p}}$, the reaction will proceed in right direction, $\text{reactants}\stackrel{}{\to }\text{products}$

When ${\text{Q}}_{\text{p}}{\text{ > K}}_{\text{p}}$, the reaction will proceed in left direction, $\text{reactants}\stackrel{}{\leftarrow }\text{products}$

When ${\text{Q}}_{\text{p}}{\text{ = K}}_{\text{p}}$, the reaction will remain unchanged, $\text{reactants}\stackrel{}{\rightleftharpoons }\text{products}$