Chapter 19, Problem 19B.9BE

(a)

Interpretation Introduction

Interpretation:

From the given desorption energy, the time required for an atom remain on surface has to be calculated.

Concept Introduction:

Half-life: The time required for half of a reactant to be consumed in a reaction is said to be half-life.

• Half-life of a reaction is represented by the symbol as ${\text{t}}_{\text{1/2}}$.
• Half-life is discovered by Ernst Rutherford's in 1907 from the original term half-life period.

(b)

Interpretation Introduction

Interpretation:

From the given desorption energy, the time required for an atom remain on surface has to be calculated.

Concept Introduction:

Half-life: The time required for half of a reactant to be consumed in a reaction is said to be half-life.

• Half-life of a reaction is represented by the symbol as ${\text{t}}_{\text{1/2}}$.
• Half-life is discovered by Ernst Rutherford's in 1907 from the original term half-life period.