ChemistryChapter 5: States and Phases of Matter

5.4.1 General Properties of Solids

Solids:

This topic explains the general properties of solids. It describes how solids behave in terms of shape, volume, intermolecular forces, molecular motion, and compressibility.

Definition

Solids: One of the three fundamental states of matter, in which particles (atoms, molecules, or ions) are closely packed in a fixed, orderly arrangement.

Main Idea

Solids have a definite mass, volume, and shape. Their constituent particles are closely packed with strong forces of attraction between them. Due to this, solids are non-compressible, have high density, and their particles can only vibrate about their fixed positions. Solids show negligible diffusion.

Core Concept

Definite shape and volume — solids have fixed shape and volume.
Strong intermolecular forces — particles are closely packed.
Vibrational motion only — particles vibrate about fixed positions.
Non-compressible — very little space between particles.
Negligible diffusion — particles cannot move freely.
High density — closely packed particles.
Expansion on heating — volume increases when heated.

Detailed Explanation

General Properties of Solids

Solids have definite mass, volume, and shape.
They have a compact arrangement of constituent particles.
There is short distance between molecules, and forces of attraction between particles are very strong.
Due to this reason, solids are non-compressible and they cannot diffuse into each other.
Solid particles only have vibrational motion.

Detailed Properties

Solids have a definite shape and volume under constant conditions.
They are a collection of atoms or molecules held together in a definite shape.
Substances which are rigid, hard, cannot flow, and have definite volume under constant conditions are called solids.
They have definite size under constant conditions because of strong forces of attraction between their atoms or molecules.

Its constituent particles (atoms, molecules, or ions) cannot move randomly.
Particles only show vibrational motion.
Solid particles are held together by strong cohesive forces.

Its constituent particles (atoms, molecules, or ions) are closely packed with each other.
There exists a well-ordered arrangement in solids.

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Main Idea

Core Concept

Definite shape and volume — solids have fixed shape and volume.

Strong intermolecular forces — particles are closely packed.

Vibrational motion only — particles vibrate about fixed positions.

Non-compressible — very little space between particles.

Negligible diffusion — particles cannot move freely.

High density — closely packed particles.

Expansion on heating — volume increases when heated.

Detailed Explanation

General Properties of Solids

Solids have definite mass, volume, and shape.

They have a compact arrangement of constituent particles.

There is short distance between molecules, and forces of attraction between particles are very strong.

Due to this reason, solids are non-compressible and they cannot diffuse into each other.

Solid particles only have vibrational motion.

Detailed Properties

Solids have a definite shape and volume under constant conditions.

They are a collection of atoms or molecules held together in a definite shape.

Substances which are rigid, hard, cannot flow, and have definite volume under constant conditions are called solids.

They have definite size under constant conditions because of strong forces of attraction between their atoms or molecules.

Its constituent particles (atoms, molecules, or ions) cannot move randomly.

Particles only show vibrational motion.

Solid particles are held together by strong cohesive forces.

Its constituent particles (atoms, molecules, or ions) are closely packed with each other.

There exists a well-ordered arrangement in solids.