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chemistry
energy changes
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Cards (16)
Intermolecular force
of
attraction
The
force
of
attraction
between liquid particles
Liquids
have a more ordered structure than
gases
Solids
have a
highly
ordered structure
Melting
The process by which a
solid
is converted into a
liquid
Evaporation
The process by which
molecules
on the surface of a liquid break away and undergo into the
gas
phase
Evaporation
A surface phenomenon where the
molecules
on the surface of a liquid break away and enter the
gas
phase
In an open container,
evaporation
continues until all the liquid enters the
gas
phase
In a closed container, the volume of liquid
decreases
for some time until dynamic equilibrium is established between evaporation and
condensation
Condensation
The process by which a
gas
is converted into a
liquid
As
temperature increases
The
rate of evaporation increases
Liquids with stronger
intermolecular
forces have lower
vapor
pressure
Liquids with
weaker
intermolecular forces have
higher
vapor pressure
As
surface area
of a
liquid increases
The
rate of evaporation increases
Boiling
The process by which
vapor bubbles
form within the liquid and rise to the
surface
Boiling point
The
temperature
at which the
vapor
pressure of a liquid is equal to the external atmospheric pressure
The boiling point of a liquid
decreases
as altitude increases due to
lower
air pressure
