Chapter 3 Test Study Guide

Question 1

Boyle’s Law states that the volume of a gas is inversely proportional to its pressure if the…

Answer 1

Temperature and number of particles are constant

Question 2

The Law that States that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is consistent is?

Answer 2

Charles’ Law

Question 3

The phase change in which a Substance changes from a solid to a gas or vapor without changing to a liquid first is called what?

Answer 3

Sublimation

Question 4

Matter that has a definite volume but no definite shape is a ______.

Answer 4

Liquid

Question 5

Which of the following is an endothermic change?

Answer 5

Vaporization

Question 6

Which of the following is a Exothermic change?

Answer 6

Deposition

Question 7

The phase change in which a substance changes from a liquid to a gas is ______.

Answer 7

Vaporization

Question 8

In which substance are the forces of attraction among the particles so weak that they can be ignored under ordinary conditions?

Answer 8

Substance C

Question 9

If the volume of a cylinder is reduced from 4.0 to 2.0 liters, the pressure of the gas in the cylinder will change from 100 kilopasacals to ______

Answer 9

200 Kilopascals

Question 10

The phase change in which a substance changes from a solid to a liquid is _____.

Answer 10

Melting

Question 11

The phase change in which a substance changes from a gas directly to a solid is called?

Answer 11

Deposition

Question 12

Collisions of helium atoms and the walls of a closed container cause what to happen to the pressure?

Answer 12

Gas pressure

Question 13

Temp. can be used to recognize a phase change because during the phase change, the temp. of the substance does what?

Answer 13

It doesnt change

Question 14

The phase change that is reverse of condensation is_____.

Answer 14

Vaporization

Question 15

During what phase change does the arrangement of water molecules become more orderly?

Answer 15

Freezing

Question 16

What factors affect the pressure of an inclosed gas?

Answer 16

Volume, Temperature, number of particles

Question 17

What is the result of a force distributed over an area?

Answer 17

Pressure

Question 18

when describing a gas you could say that is has what characteristics?

Answer 18

It has no definite shape and no definite volume.

Question 19

What type of change occurs when water changes from a solid to a liquid?

Answer 19

Physical and phase change

Question 20

If you move a substance from one container to another and its volume changes, the substance is a ____.

Answer 20

Gas

Question 21

The ____ Theory of matter states that all particles of matter are in constant motion.

Answer 21

Kinetic

Question 22

The motion of one particle of a gas in unaffected by the motion of other particles of the gas unless the particles _____.

Answer 22

Collide

Question 23

A ___ Has a definite volume and a definite shape.

Answer 23

Solid

Question 24

Materials can be classified as solids liquids, or gases based on whether their shapes and ____ are definite or variable.

Answer 24

Volumes

Question 25

When water boils, some of its molecules have enough _____ to overcome the attraction of neighboring Molecules.

Answer 25

Kinetic Energy

Question 26

The phase change that is reverse of deposition is _____.

Answer 26

Sublimation

Question 27

During an ___ change, the system releases energy to its surroundings.

Answer 27

Exothermic

Question 28

____ Between the particles of a gas and the walls of the container cause pressure in a closed container of gas

Answer 28

Collisions

Question 29

During vaporization, a substance changes from a ___ to a ___.

Answer 29

Liquid;Gas

Question 30

How could you determine if a phase change is endothermic

Answer 30

If you can take the temperature of the surrounding area, and the temp. decreases.

Question 31

Explain why boiling water in a large pot on the stove has a temperature of 100°C even if it has been boiling for an hour

Answer 31

A phase change is taking place as the water boils to turn into a water vapor the temperature does not change

Question 32

What to phase changes occur between solid water and liquid water and at what temperature does each phase change take place?

Answer 32

Melting and freezing and it will take place at 0°C

Question 33

Why does the air pressure in a car tires increase after a long drive

Answer 33

The constant motion causes the air to warm up, which increases the kinetic energy leading to the colliding of the particles.

Question 34

What substance in figure 3-1 is a solid explain how you know

Answer 34

Substance A because particles are tight together and in a regular position.

Question 35

Compare the shape and volume of solids liquids and gases

Answer 35

Solids- Definite shape & definite Volume Liquids- No definite shape & definite volume Gas- No definite shape & no definite volume

Question 36

Name a describe the phase change that occurs when dry ice is placed in an open container at room temperature

Answer 36

Sublimation: at room temperature it changes from a solid carbon dioxide into a gas carbon dioxide

Question 37

What happens to the average quick energy of water molecules of water freezes

Answer 37

As water freezes it releases energy into its surroundings and the average kinetic energy decreases

Question 38

Describe what happens to the arrangement of water molecules as ice melts

Answer 38

At the melting point of water some molecules gain enough energy to move from their fixed positions

Question 39

Identify the phase change in figure 3 that are labeled A, B, And C

Answer 39

A:vaporization B: melting C:freezing

Question 40

Describe the two phase changes that can happen to a liquid.

Answer 40

Freezing- liquid to solid | Melting - solid to liquid