General Chemistry 2 - Module 1: Kinetic Molecular Model of Solids and Liquids

Question 1

matter can exist in four different states

Answer 1

solid
liquid
gas
plasma

Question 2

this is a theory that explains the state of matter and is based on the idea that matter is composed of tiny particles that are always in motion

Answer 2

kinetic molecular theory

Question 3

the state of a substance depends on what

Answer 3

the balance between the kinetic energy of the individual particles (molecules or atoms) and the intermolecular forces

Question 4

what type of energy keeps the molecules apart and moving around, and is a function of the temperature of the substance

Answer 4

kinetic energy

Question 5

are the attractive forces that try to draw the particles together

Answer 5

intermolecular forces

Question 6

matter is made of particles that are constantly in motion. this energy in motion is called

Answer 6

kinetic energy

Question 7

the amount of kinetic energy is related to what

Answer 7

temperature

Question 8

what is the relationship between kinetic energy and temperature

Answer 8

high temperature = high kinetic energy

Question 9

what occurs when the temperature of the substances changes sufficiently

Answer 9

phase change

Question 10

this is located between particles, and is related to the substance’s state of matter

Answer 10

space

Question 11

these are called attractive forces. the strength of these forces increases as particles get closer together

Answer 11

intermolecular forces

Question 12

the molecules are so close together that there is very little empty spaces

Answer 12

liquid state

Question 13

molecules are held rigidly in position with virtually no freedom of motion, so they only vibrate only about fixed positions

Answer 13

solid state

Question 14

this are almost incompressible and posses definite shape and volume

Answer 14

solid state

Question 15

have the weakest intermolecular force

Answer 15

gas state

Question 16

have the strongest intermolecular force

Answer 16

solid state

Question 17

in the broadest sense, what was the kinetic molecular theory designed to explain?

Answer 17

the behavior of matter

Question 18

what happens to the kinetic energy of particles when there is an increase in temperature

Answer 18

it also increases

Question 19

why are solids and liquids considered as condensed states

Answer 19

they have smaller spaces between molecules compared to gas

Question 20

rank the states of matter based on decreasing the relative strength of attractive forces between particles

Answer 20

solid, liquid, gas

Question 21

rank the matter based on decreasing amount of space between particles

Answer 21

gas, liquid, solid

Question 22

which of the following explains why gases are less dense than solids

Answer 22

gases have faster moving particles that are far apart