Chapter 3, Section 2

Question 1

change of state

Answer 1

CONVERSION of a substance from one PHYSICAL FORM to another

Question 2

heat

Answer 2

a TRANSFER of ENERGY

Question 3

sublimation

Answer 3

a change of state from a solid directly into a gas

Question 4

temperature

Answer 4

a measure of the speed of its particles (a measure of its energy)

Question 5

melting

Answer 5

change of state from a solid to a liquid

Question 6

melting point

Answer 6

TEMPERATURE at which the substance changes from a solid to a liquid.

Question 7

endothermic change

Answer 7

energy is ABSORBED (added, goes in)

Question 8

freezing point

Answer 8

TEMPERATURE at which a liquid changes into a solid

Question 9

freezing

Answer 9

change of state from a liquid to a solid

Question 10

exothermic change

Answer 10

energy is REMOVED (goes out, exits)

Question 11

vaporization

Answer 11

change of state from a liquid to a gas

Question 12

boiling

Answer 12

VAPORIZATION that occurs throughout a liquid

Question 13

evaporation

Answer 13

VAPORIZATION occurs at the SURFACE of a liquid BELOW its boiling point

Question 14

condensation

Answer 14

change of state from a gas to a liquid

Question 15

condensation point

Answer 15

TEMPERATURE at which the gas becomes a liquid and is the same tmperature as the boiling point

Question 16

sublimation

Answer 16

change of state from a solid directly into a gas

Question 17

Melting goes from a _____ to a _____.

Answer 17

solid to liquid

Question 18

Freezing goes from a _____ to a _____.

Answer 18

liquid to a solid

Question 19

Vaporization goes from a _____ to a _____.

Answer 19

liquid to a gas

Question 20

Condensation goes from a _____ to a _____.

Answer 20

gas to a liquid

Question 21

Sublimation goes from a _____ to a _____.

Answer 21

solid to a gas

Question 22

Melting - exothermic or endothermic?

Answer 22

endothermic (energy goes IN)

Question 23

Freezing – exothermic or endothermic?

Answer 23

EXOthermic (energy goes out)

Question 24

Vaporization – exothermic or endothermic?

Answer 24

ENDOthermic (energy goes IN)

Question 25

Condensation – exothermic or endothermic?

Answer 25

EXOthermic (energy goes OUT)

Question 26

Sublimation – exothermic or endothermic?

Answer 26

ENDOthermic (energy goes IN)

Question 27

characteristic property

Answer 27

property of a substance that is always the same whether the sample observed is large or small