Chapter 3: Solids, Liquids, and Gases

32 terms

Solid

of definite shape and volume, has a definite shape and volume

Crystalline Solid

Solids that are made up of crystals

Amorphous Solid

The particles are not arrange in a regular pattern.

Liquid

matter that has a definite volume but no definite shape

Fluid

A substance that flows

Surface Tension

the result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together

Viscosity

a liquid's resistance to flow

Gas

matter that does not have a definite shape or volume

Melting

the change of state from a solid to a liquid

Melting Point

The temperature at which a given substance will change from a solid to a liquid.

Freezing

the change from the liquid to the solid

Vaporization

the change from a liquid to a gas

Evaporation

vaporization that occurs at the surface of a liquid

Boiling

vaporization that takes place below the surface of a liquid

Boiling Point

the temperature at which liquid boils

Condensation

the change of state from a gas to a liquid.

Sublimation

the process by which a solid changes directly into a gas

Pressure

the force of its outward push divided by the area of the walls of the container

Boyle's Law

The relationship between the pressure and volume of a gas at constant temperture; when volume increase, pressure decreases.

Charles's Law

The temperature of a gas is decreased at constant pressure, its volume decreases

Graph

A diagram that shows how two variables, or factors that change, are related.

Origin

the point labeled (0,0) on a number line

Directly Proportional

when a graph of two variables is a straight line passing through the (0,0) point, the relationship is linear and the variables are said to be this

Vary Inversely

a term used to describe the relationship between two variables whose graph forms a curve that slopes downwards

Pressure

n/m2

Newtons measure

Area

Square Meters mearure

Pascals measure

The thermal energy increases volume.

How does the thermal energy of water change as it melts?

Crysalline solid particles form a regular, repeating patten and melt at a distint temperature and amorphous solid particles are not arranged in regular pattern and melt over a range of temperature.

How do Crystalline solids differ from amorphous solids?

Temperature

measure of the average energy of random motion of the particles of a substance