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