Reading the
PHASE DIAGRAM
Phase Diagram for water, H2O
D
Pressure (atm)
SOLID
217.75
1.00
B
LIQUID
C
GAS
0.0060
A
100.00
0.00 0.061
373.99
Temperature (°C)
Phase Diagram for CO2
Color each of the three sections of the phase diagram
above with three different colors.
_________________________________
At what temperature and pressure does Point A occur
for water? _____________________________________
What is Point A called? ___________________________
What is the melting point for water at 1.00 atm
pressure? ____________________
Pressure (atm)
What is the boiling point of water at 1.00 atm pressure?
55.0
Solid
Gas
25.0
Temperature (°C)
GAS
At what temperature and pressure does CO2 exist in all
three phases? __________________________________
If pressure decreases from 55.0 atm to 1.00 atm at a
constant temperature of 0°C, what phase change will
take place? ____________________________________
If room temperature is 25.0°C and at standard pressure,
SOLID
LIQUID
CO2 is in what phase? ____________________________
Copyright © 2019 Chemistry Corner
Reading the
PHASE DIAGRAM
Phase Diagram for water, H2O
D
Pressure (atm)
SOLID
217.75
1.00
0.0060
B
LIQUID
C
GAS
A
100.00
0.00 0.061
373.99
Temperature (°C)
Pressure (atm)
Phase Diagram for CO2
55.0
Solid
Gas
25.0
Temperature (°C)
GAS
SOLID
LIQUID
Copyright © 2019 Chemistry Corner