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16 Cards in this Set

  • Front
  • Back
boiling point
the temperature at which liquid and vapor coexist in equilibrium
condensation
change of gas to liquid (exothermic)
critical point
a combination of temperature and pressure beyond which a gas cannot be liquefied
deposition
change of a gas directly to a solid
freezing
change of a liquid to a solid
Heat of fusion (deltaH of fusion)
the amount of heat required for melting a solid to a liquid
Heat of vaporization (delta H of vap)
the amount of heat required for vaporization of a liquid to a gas
melting point
the temperature at which solid and liquid coexist in equilibrium
normal boiling point
the temperature at which boiling occurs when there is exactly 1 atm of external pressure
normal melting point
the temperature at which melting occurs when there is exactly 1 atm of external pressure
phase change
a process in which the physical form but not the chemical identity of a substance changes
phase diagram
a plot showing the effects of pressure and temperature on the physical state of a substance
sublimation
the direct conversion of a solid to a vapor
supercritical fluid
a state of matter beyond the critical point that is neither liquid nor gas
triple point
a unique combination of pressure and temperature at which gas, liquid, and solid phases coexist in equilibrium
vaporization
the change of a liquid to a gas