States Of Matter

Front 1

Kinetic-molecular theory

Back 1

particles of matter are always in motion

Hint 1

Front 2

Ideal gas

Back 2

A hypothetical gas that perfectly fits all assumptions of the kinetic-molecular theory

Hint 2

Front 3

Elastic collision

Back 3

Collision between gas particles and container walls, and there is no net loss of total kinetic energy

Hint 3

Front 4

Diffusion

Back 4

spontaneous mixing of the particles of two substances caused by their random motion

Hint 4

Front 5

Effusion

Back 5

A process by which gas particles pass through a tiny opening

Hint 5

Front 6

Real gas

Back 6

A gas that does not behave completely according to the assumptions of the kinetic-molecular theory

Hint 6

Front 7

5 assumptions of kinetic theory

Back 7

1. Tiny particles are far apart

2. Elastic collision

3. Particles are in continuous motion

4. No attraction between particles

5. Temperature of gas depends on average K.E.

Front 8

5 properties of gases

Back 8

1. Expansion

2. Fluidity

3. Low density

4. Compressibility

5. Diffusion and Effusion

Front 9

Fluid

Back 9

A substance that can flow and take the shape of its container

Hint 9

Front 10

Surface tension

Back 10

Force that pulls parts of a liquids surface tension together, decreasing surface area to the smallest possible size the at

Hint 10

Front 11

Capillary action

Back 11

The attraction of the surface of a liquid to the surface of a solid

Hint 11

Front 12

Vaporization

Back 12

Liquid or solid changes to a gas

Hint 12

Front 13

Freezing

Back 13

Physical change of a liquid to solid by removal of energy as heat

Hint 13

Front 14

Evaporization

Back 14

Particles escape from the surface of a non boiling liquid and enter gaseous state

Hint 14

Front 15

6 properties of liquids

Back 15

1. Relatively high densities

2. Incompressibility

3. Ability to diffuse

4. Surface tension

5. Evaporation and boiling

6. Formation of solids

Front 16

Boiling

Back 16

Change of liquid to bubbles of vapor that appears throughout the liquid

Hint 16

Front 17

Crystalline solids

Back 17

Solids that consist of crystals

Hint 17

Front 18

Amorphous solids

Back 18

Particles are arranged randomly

Hint 18

Front 19

Melting

Back 19

Physical change of a solid to a liquid, by the addition of energy as heat

Hint 19

Front 20

Melting point

Back 20

Temperature at which solid becomes a liquid

Hint 20

Front 21

Supercooled liquids

Back 21

Substances that retain certain extent liquid properties even at temperature wich they appear to be solid

Hint 21

Front 22

Crystal structure

Back 22

The total three-dimensional arrangement of particles of a crystal

Hint 22

Front 23

Unit cell

Back 23

Smallest portion of a crystal lattice that shows the three-dimensional pattern of entire lattice

Hint 23

Front 24

4 properties of solids

Back 24

1. Definite shape and volume

2. Definite melting point

3. High density and incompressibility

4. Low rate of diffusion

Front 25

4 properties of crystals solids form

Back 25

1. Ionic crystals

2. Covalent network crystals

3. Metallic crystals

4. Covalent molecular crystals

Front 26

2 major types of amorphous solids

Back 26

1. Glasses

2. Polymers

Front 27

Phase

Back 27

Any part of a system that has uniform composition and properties

Front 28

Condensation

Back 28

Process by which gas changes to a liquid

Hint 28

Front 29

Equilibrium

Back 29

A dynamic condition in which two opposing changes occur eat equal rates in a closed system

Front 30

Equilibrium vapor pressure

Back 30

The pressure exerted by vapor in equilibrium with its correct liquid at given temperature

Hint 30

Front 31

Volatile liquids

Back 31

Liquids that evaporate readily

Hint 31

Front 32

Boiling point

Back 32

The temperature at which the equilibrium vapor pressure equals the atmospheric pressure

Hint 32

Front 33

Molar enthalpy of vaporization

Back 33

The amount of energy that is needed to vaporize one mole of liquid at the liquids boiling point at constant pressure

Front 34

Freezing point

Back 34

Temperature at which the solid and liquid are at equilibrium at 1atm pressure

Front 35

Molecular enthalpy of fusion

Back 35

The amount of energy as heat required to melt one mole of solid at the solids melting point

Front 36

Sublimation

Back 36

Change of solid directly to a gas

Hint 36

Front 37

Deposition

Back 37

Change of gas directly to a solid

Hint 37

Front 38

Phase diagram

Back 38

A graph of temperature vs pressure that conditions under which the phase substance exits

Hint 38

Front 39

Triple point

Back 39

Indicates the temperature and pressure conditions at which the solid, liquid and vapor can coexist at equilibrium

Front 40

Critical point

Back 40

Indicates the criticical temperature and pressure

Front 41

Critical temperature

Back 41

Temperature above which the substance cannot exit in liquid state

Front 42

Critical pressure

Back 42

Lowest pressure at which the substance can exit as a liquid at the critical temperature