2 changes in state

Changes in StateChanges in State

Changes in StateChanges in State

3 Ways State of Matter 3 Ways State of Matter ChangesChanges

-Evaporation-Evaporation-Sublimation-Sublimation-Condensation-Condensation

EvaporationEvaporation

When liquid changes to When liquid changes to a gas when the a gas when the temperature is above the temperature is above the boiling pointboiling point

100100°C, 212°F or 373 K°C, 212°F or 373 K

Evaporation PicturesEvaporation Pictures

SublimationSublimation

When a solid changes When a solid changes directly to a gas without directly to a gas without going through the liquid going through the liquid state.state.

Sublimation PicturesSublimation Pictures

CondensationCondensation

When a gas changes to When a gas changes to a liquid when cooled to a liquid when cooled to or below the boiling or below the boiling point.point.

Condensation PicturesCondensation Pictures

Heat/EnergyHeat/Energy

Joules- measurement of Joules- measurement of energy (like calories).energy (like calories).

4.184 calories= 1 Joule4.184 calories= 1 Joule1000 Joules= 1 kJ 1000 Joules= 1 kJ

(kiloJoule)(kiloJoule)

Heat of FusionHeat of Fusion

Amount of energy Amount of energy needed to change from a needed to change from a solid to a liquid. The solid to a liquid. The heat of fusion for water is heat of fusion for water is 334 kJ/kg.334 kJ/kg.

Heat of fusionHeat of fusion

Heat of VaporizationHeat of Vaporization

Amount of energy Amount of energy needed to change from needed to change from liquid to a gas. The heat liquid to a gas. The heat of vaporization of water of vaporization of water is 2260 kJ/kg.is 2260 kJ/kg.

Which requires Which requires lessless energy? energy?

Water going from a solid Water going from a solid to a liquid.to a liquid.

ORORWater going from a Water going from a liquid to a gas.liquid to a gas.