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Gen Chem Chapter 8: Phases and Phase Changes
mcat gen chem
26
Chemistry
Undergraduate 4
07/09/2009

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Term
miscibility:
Definition
degree to which two liquids can mix
Term
immiscible:
Definition
molecules end to repel each other due to polarity difference
Term
solids have ____ motion
Definition
vibrational
Term
crystalline solid:
Definition
ordered structure of repeating patterns
Term
amorphous solid:
Definition
no ordered 3D arrangement
Term
ionic solid characteristics:
____ MP
____ BP
____ conduct electricity
Definition
high, high, can not
Term
ionic solid:
Definition
aggregates of positively and negatively charged ions
Term
metallic solids:
Definition
metal atoms packed together as closely as possible
Term
characteristics of metallic solids:
___ MP
___ BP
Definition
high, high, because of strong covalent attractions
Term
in an isolated system phase changes are
Definition
reversible and an equilibrium exists between phases
Term
evaporation:
Definition
liquid to gas
Term
condensation:
Definition
gas to liquid
Term
fusion:
Definition
melting: solid to liquid
Term
crystallization:
Definition
solidification, freezing,: liquid to solid
Term
amorphous solids tend to
Definition
melt over a large range of temperatures
Term
sublimation:
Definition
solid to gas
Term
deposition:
Definition
gas to solid
Term
triple point:
Definition
all three phases are in equilibrium
Term
critical point:
Definition
no distinction between liquid and gas is possible
Term
colligative properties are derived solely from
Definition
the number of particles present not the nature of those particles
Term
freezing point...
Definition
depression
Term
boiling point
Definition
elevation
Term
osmotic pressure
Definition
increases
Term
vapor pressure...
Definition
lowering
Term
FP BP OP VP
Definition
IDID
Term
basic structural unit of a crystalline substance:
Definition
unit cell
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