Chapter 6, Problem 109CP

Interpretation Introduction

Interpretation:Value of $K_{\text{p}}$ is to be calculated for indicated reaction.

  ${\text{SO}}_{\text{3}}\left(g\right)\rightleftharpoons {\text{SO}}_2\left(g\right)+\frac{1}{2}{\text{O}}_2\left(g\right)$

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 $K_{\text{p}}$ .

Expression for ideal gas equation is as follows:

  $PV=nRT$

Where,

• $P$ is pressure of gas.
• $V$ is volume of gas.
• $n$ denotes moles of gas.
• $R$ is gas constant.
• $T$ is temperature of gas.