GENERAL CHARACTERISTICS OF GASES

GENERAL CHARACTERISTICS OF GASES
1. Expansibility
Gases have limitless expansibility. They expand to fill the
entire vessel they are placed in.
2. Compressibility
Gases are easily compressed by application of pressure to a
movable piston fitted in the container.

3. Diffusibility
Gases can diffuse rapidly through each other to form a homogeneous mixture.
4. Pressure
Gases exert pressure on the walls of the container in all directions.

When a gas, confined in a vessel is heated, its pressure increases. Upon heating in a vessel
fitted with a piston, volume of the gas increases.
The above properties of gases can be easily explained by the Kinetic Molecular Theory which
will be considered later in the chapter.

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