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phase diagrams

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... of a substance in a closed system as a function of temperature and pressure ... Critical Temperature ... Critical Pressure ... – PowerPoint PPT presentation

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Title: phase diagrams


1
PHASE DIAGRAMS
2
PHASE DIAGRAM
  • A representation of the phases of a substance in
    a closed system as a function of temperature and
    pressure

3
Normal Boiling Point
  • Temperature at which the vapor pressure of the
    liquid is exactly 1 atmosphere

4
Normal Melting Point
  • Temperature at which the solid and liquid states
    have the same vapor pressure when the total P 1
    atm

5
Triple Point
  • The point on a phase diagram at which all three
    states of a substance are present

6
Critical Temperature
  • Temperature above which vapor cannot be liquified
    no matter what pressure is applied

7
Critical Pressure
  • Minimum pressure required to produce liquefaction
    of a substance at the critical temperature

8
Critical Point
  • Ordered pair of
  • Critical Temperature
  • Critical Pressure

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CO2
11
H2O
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15
sulfur
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