Changes of State
Vocabulary
The Nature of Liquids
The Nature of Solids
The Nature of Gases
100

The change of a substance from a solid to a vapor without passing through the liquid state is called...

What is sublimation?

100

The energy an object has because of its motion.

What is kinetic energy?

100

The conservation of a liquid to a gas or vapor

What is vaporization?

100

The temperature at which a solid changes into a liquid.

What is the melting point?

100

A device that is used to measure atmospheric pressure.

What is a barometer?

200

This gives the conditions of temperature and pressure at which a substance exists as a solid, liquid, or gas.

What is a phase diagram?

200

All matter consists of tiny particles that are in constant motion

What is kinetic theory?

200

Boiling is a _______ process

What is a cooling process?

200

This is when a liquid changes into a solid.

What is the freezing point?

200

This results from the force exerted by a gas per unit surface area of an object.

What is gas pressure?

300

This describes the only set of conditions at which all three phases can exist in equilibrium with one another.

What is the triple point?

300

The boiling point of a liquid at a pressure at 101.3 kPa.

What is normal boiling point?

300

Liquids and solids are known as...

What are condensed states of matter?

300

In a crystal, the particles are arranged in an orderly, repeating, three-dimensional pattern called a..

What is a crystal lattice?

300

An empty space with no particles and no pressure is called a...

What is a vacuum?

400

Sublimation can occur because solids, like liquids, have a...

What is vapor pressure?

400

The smallest group of particles within a crystal that retains a geometric shape of the crystals 

What is a unit cell?

400

A measure of the force exerted by a gas above a liquid is called...

What is vapor pressure?

400

A transparent fusion product of inorganic substances that have cooled to a rigid state without crystallizing. 

What is glass?

400

The collisions of atoms and molecules in air with objects results in...

What is atmospheric pressure?

500

Iodine is an example of...

What is sublimation?

500

Two or more different molecular forms of the same element in the same physical state

What are Allotropes?

500

When a liquid is heated to a temperature at which particles throughout the liquid have enough kinetic energy to vaporize it....

What is boil?

500

This lacks an ordered internal structure.

What is an amorphous solid?

500

During ____ ____, kinetic energy is transferred without loss from one particle to another.

What is elastic collision?