Heating Curve, Cooling Curve, General Phase Diagram

2. Heating curve
Heat of fusion
Is the change in its enthalpy resulting
from providing energy, typically heat,
to a specific quantity of the substance
to change it state from a solid to a
liquid, at constant pressure.
Heat of vaporization
Is the amount of energy that must be
added to a liquid substance to
transform a quantity of that
substance into a gas.

3. Cooling curve
Is a line graph that
represent the change of
phase of matter, typically
from a gas to a solid or a
liquid to a solid

4. General Phase Diagram
.
Two Points:
*Triple Point
-refers to the temperature
and pressure at which all
three phases (solid,
liquid, and gas) coexist in
a dynamic equilibrium.
*Critical Point
-refers to the critical
temperature and the
critical pressure together.