Chem Chapter 10 Test

Question 1

What observation can best be used to support that higher energy is related to faster molecular motion

Answer 1

Temperature

Question 2

When melting and solidification occur at the same rate, the system is in a state of:

Answer 2

Equilibrium

Question 3

Process by which particles exacted from the surface of a non-boiling liquid and enter the gas phase

Answer 3

Evaporation

Question 4

Process by which a gas changes to a liquid

Answer 4

Condensation

Question 5

Type of solid in which particles are arranged randomly

Answer 5

Amorphous Solid

Question 6

Dynamic condition in which two opposing changes occur at equal rates in a closed system

Answer 6

Equilibrium

Question 7

Attraction of liquid particles to solid surface particles that allow the liquid particles to defy gravitational forces

Answer 7

Capillary Act

Question 8

The temperature above which a substance cannot exist in its liquid state

Answer 8

Critical Point

Question 9

Any part of a system that has uniform composition and properties

Answer 9

Phase

Question 10

Crystal structure that typically has the lowest melting point of all crystal types

Answer 10

Covenant Molecule Crystal

Question 11

Physical mixing of gas or liquid substances through Constant, random motion of particles

Answer 11

Diffusion

Question 12

Curved surface of liquids as the result of capillary actio

Answer 12

Meniscus

Question 13

Type of crystal which is hard, brittle, and non-conducting

Answer 13

Covenant network crystals

Question 14

An imaginary gas that perfectly fits all the assumptions of the kinetic molecular theory

Answer 14

Ideal gas

Question 15

Gases do not have a definite shape or a definite volume. They fill the container that holds them

Answer 15

Expansion

Question 16

Gas particles glide daily past one another because the attractive forces between them are important

Answer 16

Fluidity

Question 17

Gas particles are very for apart, large volume and low density

Answer 17

Low density

Question 18

Gas particles can be forced closer to one another

Answer 18

Compressibility

Question 19

Gases move from higher concentration to lower

Answer 19

Diffusion

Question 20

Gas particles under pressure passing through a small opening

Answer 20

Effusion

Question 21

Particles in a constant emotion

Answer 21

Liquid

Question 22

Can flow and take shape of container

Answer 22

Fluid

Question 23

Liquid due to close arrangement of liquid particles

Answer 23

Relative high density

Question 24

Liquid particles are more earlier packed together and can transmit pressure equally in all directions

Answer 24

Relative incompressbity

Question 25

Liquids diffuse and mix with any other liquid in which it can dissolve due to random motion of particles

Answer 25

Ability to diffuse

Question 26

Force that tends to pull adjacent parts of liquids surface together, there by decreasing surface area to the smallest possible size

Answer 26

Surface tension of water

Question 27

Intermolecular

Answer 27

Cohesive force

Question 28

Intramolecular

Answer 28

Adhesive force

Question 29

Process by which a liquid changes into a gas

Answer 29

Vaporization

Question 30

Observation of water:

Answer 30

Colorless
Order less
Tasteless
Boiling pt 
Freezing pt

Question 31

Indicates the temp. and pressure at which a substance can exist in all 3 states

Answer 31

Triple point

Question 32

Freezing point at 1 atm

Answer 32

Normal freezing point

Question 33

Boiling at 1 atm

Answer 33

Normal boiling point

Question 34

An important idea in kinetic theory is that particles of matter

Answer 34

Are in constant motion