Among CaO or CaS the compound with the higher lattice energy is to be identified. 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.

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Chapter 9, Problem 9.27P

(a)

Interpretation Introduction

Interpretation:

Among CaO or CaS the compound with the higher lattice energy is to be identified.

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.

(b)

Interpretation Introduction

Interpretation:

Among BaO or SrO the compound with the higher lattice energy is to be identified.

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.

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