Chapter 15, Problem 15.103AP

(a)

Interpretation Introduction

Interpretation: The equilibrium partial pressure of ${\text{SO}}_{\text{2}}$ with air and solid $\text{CaO}$ and the number of molecules of ${\text{SO}}_{\text{2}}$ present in that sample is to be calculated.

Concept introduction: The equilibrium constant $\left(K_{\text{p}}\right)$ is expressed as,

$K_{\text{p}}=\frac{{\left(P_{\text{C}}\right)}^c{\left(P_{\text{D}}\right)}^d}{{\left(P_{\text{A}}\right)}^a{\left(P_{\text{B}}\right)}^b}$

To determine: The equilibrium partial pressure of ${\text{SO}}_{\text{2}}$ with air and solid $\text{CaO}$.

(b)

Interpretation Introduction

To determine: The number of molecules of ${\text{SO}}_{\text{2}}$ present in that sample.