Chapter 6, Problem 29P

Interpretation Introduction

(a)

Interpretation:

Whether the bonds of products are stronger than the bond of reactants or not needs to be determined.

Concept introduction:

Bond dissociation energy is defined as the amount of energy needed to break a bond into the respective atoms.

It is equal to the bond energy, that is, the amount of energy required to make the bond. It is equal to the sum of bond dissociation energies of all the bonds present in the molecule.

Interpretation Introduction

(b)

Interpretation:

The amount of energy absorbed when 4.00 mol of glucose metabolize to form CO₂ and H₂O needs to be determined.

Concept Introduction:

In glucose metabolism bonds in glucose break to form CO₂ and H₂O. Bond dissociation energy is defined as the amount of energy which is required to break a chemical bond. In an endothermic reaction, energy is required but it is released in an exothermic reaction.

Interpretation Introduction

(c)

Interpretation:

The amount of energy absorbed when 3.00 mol of O₂ reacts with glucose to form CO₂ and H₂O.

Concept Introduction:

In glucose metabolism bonds in glucose break to form CO₂ and H₂O. Bond dissociation energy is defined as the amount of energy which is required to break a chemical bond. In an endothermic reaction, energy is required but it is released in an exothermic reaction.

Interpretation Introduction

(d)

Interpretation:

The amount of energy absorbed when 10.0 g of glucose metabolize to form CO₂ and H₂O needs to be determined.

Concept Introduction:

In glucose metabolism bonds in glucose break to form CO₂ and H₂O. Bond dissociation energy is defined as the amount of energy which is required to break a chemical bond. In an endothermic reaction, energy is required but it is released in an exothermic reaction.