Chapter 12, Problem 12.41QP

(a)

Interpretation Introduction

Interpretation: The minimum radius for the host metal for a $\text{H}$ atom to fit in a tetrahedral hole of an fcc unit cell and if hydride ion is more likely to be found as an interstitial alloy in a tetrahedral or octahedral hole or as a substitutional alloy is to be stated.

Concept introduction: Hydrogen is an attractive alternative fuel to hydrocarbons because it has a high fuel vale and does not produce carbon dioxide.

To determine: The minimum radius for the host metal for a $\text{H}$ atom to fit in a tetrahedral hole of an fcc unit cell.

(b)

Interpretation Introduction

To determine: If hydride ion is more likely to be found as an interstitial alloy in a tetrahedral or octahedral hole or as a substitutional alloy.