   Chapter 12, Problem 15PS

Chapter
Section
Textbook Problem

To melt an ionic solid, energy must be supplied to disrupt the forces between ions so the regular array of ions collapses. Predict (and explain) how the melting point is expected to vary as a function of the distance between cation and anion.

Interpretation Introduction

Interpretation:

The variation of the melting point has to be explained as the function of distance between the cation and anions.

Concept introduction:

• At atmospheric pressure, at which temperature the solid compound is convert in to liquid state is called the melting point of the solid compound. At the melting point the solid and liquid phase exists in equilibrium.
• An ionic solid is made up cations and anions held together by electrostatic forces in a rigid array or lattice.
• Positive charge ions are cations and negative charge ions are anions.
• Ionic bonds are formed between the cations and anions is purely electrostatic attraction
Explanation

Melting point of compound is depends on the distance between the cation and anion of the ionic solid. The distance between the ions is degreases the force of attraction of the ions increases...

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