States of matter vocab

Question 1

L1: Solid

Answer 1

A substance which exists in the solid-state

Question 2

Liquid

Answer 2

a fluid (such as water) that has no independent shape but has a definite volume and does not expand indefinitely and that is only slightly compressible.

Question 3

Gas

Answer 3

a substance that is in a gaseous, or vaporous, state of matter.

Question 4

Plasma

Answer 4

an electrically charged gas. Because plasma particles have an electrical charge

Question 5

Melting

Answer 5

a process that causes a substance to change from a solid to a liquid when there is heat

Question 6

Freezing

Answer 6

the process that causes a substance to change from a liquid to a solid.

Question 7

Vaporationzation

Answer 7

the process in which the liquid state changes into the vapour state

Question 8

Evaporation

Answer 8

the process that changes liquid water to gaseous water (water vapor).

Question 9

Condensation

Answer 9

the process by which water vapor in the air is changed into liquid water.

Question 10

Sublimation

Answer 10

conversion of a substance from the solid to the gaseous state without its becoming liquid.

Question 11

Deposition

Answer 11

the laying down of sediment carried by wind, flowing water, the sea or ice.

Question 12

Boiling Point

Answer 12

the temperature at which the substance transitions from a liquid to the gaseous phase.

Question 13

Melting Point

Answer 13

the point at which materials changes from a solid to a liquid.

Question 14

Temperature

Answer 14

the measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius.

Question 15

Thermal Energy

Answer 15

the energy contained within a system that is responsible for its temperature.

Question 16

Kinetic Energy

Answer 16

a form of energy that an object or a particle has by reason of its motion

Question 17

Kinetic molecular theory

Answer 17

explains the states of matter, and is based on the idea that matter is composed of tiny particles that are always in motion

Question 18

L2: Celsius

Answer 18

a scale for measuring temperature, in which water freezes at 0 degrees and boils at 100 degrees.

Question 19

Kelvin

Answer 19

symbol K, is the SI unit of thermodynamic temperature

Question 20

Fahrenheit

Answer 20

a scale for measuring temperature, in which water freezes at 32 degrees and boils at 212 degrees

Question 21

Heating Curve

Answer 21

a graphical representation of the correlation between heat input and the temperature of a substance

Question 22

Endothermic process

Answer 22

chemical reactions in which the reactants absorb heat energy from the surroundings to form products

Question 23

Exothermic process

Answer 23

a chemical or physical process that absorbs heat from its surroundings.

Question 24

Heat Capacity

Answer 24

the amount of heat energy required to raise the temperature of a given quantity of matter by one degree Celsius.

Question 25

Phase Diagram

Answer 25

a graphical representation of the physical states of a substance under different conditions of temperature and pressure.