Solids, Liquids & Gases

Question 1

What does Kinetic Theory explain?

Answer 1

Differences in physical properties of solids, liquids and gases in terms of arrangement and motion of particles

Question 2

Define the term density

Answer 2

Mass per unit volume in a substance

Question 3

True or False?

Solids have a fixed volume and shape

Answer 3

True

Question 4

What is the main difference between solids and liquids in particle movement?

Answer 4

In solids, particles vibrate in position but cannot change location, in liquids, particles slide and move past each other

Question 5

Which state of matter has the highest density?

Answer 5

Solids

Question 6

In terms of gases, what does compressibility mean?

Answer 6

Means that gases can be compressed into smaller amounts of volume due to the large amount of space between particles

Question 7

Which state of matter has particles with the highest energy?

Answer 7

Gas

Question 8

Which state(s) of matter have randomly arranged particles?

Answer 8

Liquid and Gas

Question 9

Liquid to Solid is called?

Answer 9

Freezing

Question 10

What is boiling?

Answer 10

When liquid changes to gas at a constant temperature

Question 11

What type of energy allows particles to move in the liquid state?

Answer 11

Kinetic Energy

Question 12

What is melting?

Answer 12

When solid changes to a liquid

Question 13

What is freezing?

Answer 13

When a liquid changes to a solid

Question 14

What happens to the forces of attraction when a solid turns to a liquid?

Answer 14

The forces of attraction are broken

Question 15

What is condensation?

Answer 15

When a gas changes into a liquid

Question 16

What is evaporation?

Answer 16

When a liquid changes into a gas

Question 17

State the melting and boiling point of pure water

Answer 17

0 and 100 Degrees Celsius

Question 18

What happens to particles during melting in terms of energy?

Answer 18

Particles absorb thermal energy which is converted into kinetic energy, allowing particles to move freely

Question 19

Define the term boiling point

Answer 19

Specific temperature at which a liquid changes to a gas

Question 20

What is the relationship between surface area and evaporation rate?

Answer 20

Directly Proportional

Question 21

What do flat sections on heating and cooling curves represent?

Answer 21

Change of state

Question 22

What happens to volume of gas as temperature increases?

Answer 22

Volume increases

Question 23

In terms of gases, define the term pressure

Answer 23

Force exerted by gas particles colliding with the walls of their container

Question 24

What causes gas particles to move faster?

Answer 24

Increase in temperature

Question 25

What happens to the frequency of particle collisions with container walls when volume decreases?

Answer 25

Frequency of collisions with wall increases

Question 26

Define the term kinetic energy in relation to gas particles

Answer 26

Energy of motion possessed by the particles

Question 27

What is diffusion?

Answer 27

Movement of particles from a area of high concentration to low concentration

Question 28

Where is diffusion fastest in?

Answer 28

Gas

Question 29

True or False? In Potassium Manganate (VII) solution, the particles can easily mix together

Answer 29

True

Question 30

Describe the concentration of particles after diffusion is complete

Answer 30

Concentration of particles in evenly spread throughout the space

Question 31

How does molecular mass affect the rate of diffusion in gases?

Answer 31

Lower Mr = Faster Diffusion Higher Mr = Slower Diffusion

Question 32

What is a concentration gradient?

Answer 32

Difference in concentration of particles between two areas