Phase Changes

Question 1

Phase Changes

Answer 1

S > L- Melting
L > S- Freezing
L > G Vaporization
G > L Condensation
S > G Sublimation
G > S Deposition

Question 2

Vapor Pressure

Answer 2

Pressure exerted on molecules of solids or liquids that break away from the surface to become gases

Question 3

Heat of Fusion

Answer 3

Energy it takes to change a substance from solid to liquid/ heat released when substance goes from liquid to solid

Question 4

Heat of Vaporization

Answer 4

Energy it takes to change liquid to gas, Heat released when it changes from gas to liquid

Question 5

Triple Point

Answer 5

When all three phases are in equilibrium

Question 6

Critical Point

Answer 6

The point at any more added temperature would only result in a gas

Question 7

Heating Curve

Answer 7

When heating up a solid > liquid or liquid >gas, first the temperature of the substance steadily rises until it changes phases. Once it changes phases it stops rising in temperature because it is using all the heat to break inter molecular bonds. Then it begins to steadily increase again. The heat of vaporization is always greater than the heat of fusion