The dependence of lattice energy of an ionic compound on the charges and sizes of the ions is to be determined. Concept introduction: Lattice energy is the amount of energy released when the ions combine to form an ionic compound. It is determined to measure the strength of the ionic interactions present in the lattice. A high negative value of lattice energy is the reason behind the formation of ionic compounds. The lattice energy of compounds depends upon generally three factors as follows: 1. Ionic Size 2. Ionic Charge 3. Arrangement of ions in the lattice

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Chapter 9, Problem 9.17P

(a)

Interpretation Introduction

Interpretation:

The dependence of lattice energy of an ionic compound on the charges and sizes of the ions is to be determined.

Concept introduction:

Lattice energy is the amount of energy released when the ions combine to form an ionic compound. It is determined to measure the strength of the ionic interactions present in the lattice. A high negative value of lattice energy is the reason behind the formation of ionic compounds.

The lattice energy of compounds depends upon generally three factors as follows:

1. Ionic Size

2. Ionic Charge

3. Arrangement of ions in the lattice

(b)

Interpretation Introduction

Interpretation:

The given ionic arrangement of three general salts is to be ranked in increasing order of lattice energy.

Concept introduction:

Lattice energy is the amount of energy released when the ions combine to form an ionic compound. It is determined to measure the strength of the ionic interactions present in the lattice. A high negative value of lattice energy is the reason behind the formation of ionic compounds.

The lattice energy of compounds depends upon generally three factors as follows:

1. Ionic Size

2. Ionic Charge

3. Arrangement of ions in the lattice

Lattice energy depends upon the ionic interaction between the ions present in the lattice. Therefore, lattice energy decreases with the increase in ionic size and decrease in the ionic charge. The value of lattice energy also depends upon the arrangement of ions. More will be the ions in the lattice higher will be the value of lattice energy.

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