click below
click below
Normal Size Small Size show me how
m&m 5.4
Heat and Changes of State
Question | Answer |
---|---|
Melting | The changing of a solid into a liquid |
Melting point | The temperature at which melting occurs |
Freezing | The changing of a liquid into a solid |
Freezing point | The temperature at which freezing occurs |
Solutes | Substances which dissolve in a liquid |
Latent heat | The "hidden" heat absorbed or released when a substance undergoes a change of state |
Heat of fusion | The latent heat required to change a given mass of a solid into a liquid without changing its temperature |
Evaporation | The change of a substance from a liquid into a gas |
Volatile | Liquids which evaporate rapidly |
Nonvolatile | Liquids which evaporate slowly |
Boil | When evaporation occurs throughout the liquid |
Boiling point | The temperature at which a substance boils |
Heat of vaporization | The quantity of heat required to change a given amount of liquid already at its boiling point into gas without raising its temperature |
Condensation | The process of a gas changing into a liquid |
Saturation point | When the amount of water evaporating equals the amount condensing |
Dr. John Gorrie | The man who created the first mechanical cooling system |
Sublimation | When a gas may change directly into a solid by the same process |
Plasma | The fourth state of matter |