Chapter 6, Problem 99CP

Interpretation Introduction

Interpretation:Equilibrium pressures of ${\text{P}}_4$ and ${\text{P}}_2$ as well as fraction of ${\text{P}}_4$ dissociated is to be determined.

  ${\text{P}}_4\left(g\right)\rightleftharpoons 2{\text{P}}_2\left(g\right)$

Concept introduction: Chemical equilibrium is taken into consideration if rate of forward and backward reactions become equal. At this stage, both reactants and products have constant concentration. It can be studied in terms of pressure also. Equilibrium constant in pressure is denoted by $K_{\text{p}}$ .