Chapter 20, Problem 45E

Interpretation Introduction

(a)

Interpretation:

The reason for inability for calculating reaction rate from collision frequency alone should be determined.

Concept introduction:

• Collision Theory helps us in predicting which conditions are necessary for a successful reaction and these conditions are-
1. The particles must collide with each other.
2. The colliding particles must have a sufficient energy to break the existing bonds.
3. The particles must have a proper orientation.

Interpretation Introduction

(b)

Interpretation- The reason why the rate of a chemical reaction may increase dramatically with temperature, whereas the collision frequency increases much more slowly is to be explained.

Concept introduction:

• Collision Theory helps us in predicting which conditions are necessary for a successful reaction and these conditions are-
1. The particles must collide with each other.
2. The colliding particles must have a sufficient energy to break the existing bonds.
3. The particles must have a proper orientation.

Interpretation Introduction

(c)

Interpretation- why the addition of a catalyst to a reaction mixture has a profound effect on the rate of a reaction, even if the temperature is held constant, is to be explained.

Concept introduction:

• Collision Theory helps us in predicting which conditions are necessary for a successful reaction and these conditions are-
1. The particles must collide with each other.
2. The colliding particles must have a sufficient energy to break the existing bonds.
3. The particles must have a proper orientation.