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- 1. Multiple Choice
What is the phase of the substance at point A?
Solid
Liquid
gas
a mixture of liquid and gas
a mixture of solid and liquid
- 2. Multiple Choice
Which of the following curves show evaporation and condensation occurring simultaneously?
I. Curve BD
II. Curve BF
III. Curve CB
I only
II only
III only
I and II
II and III
- 3. Multiple Choice
What is the normal freezing point of the substance?
0.016 0 C
0 0 C
50 0 C
100 0 C
10 0 C
- 4. Multiple Choice
What is the critical pressure of nitrogen?
1 atm
0.127 atm
20 atm
30 atm
33.5 atm
- 5. Multiple Choice
What is the pressure of nitrogen at the triple point?
O atm
0.127 atm
1.00 atm
30 atm
33.5 atm
- 6. Multiple Choice
What change occurs from F to E?
sublimation
deposition
melting
condensation
freezing
- 7. Multiple Choice
What will occur when the substance transitions from B to A? (Diagram A)
condensation
evaporation
melting
freezing
sublimation
- 8. Multiple Choice
What will occur when the substance changes from 1 atm to 30 at a constant temperature of -15oC? (Diagram A)
condensation
deposition
melting
sublimation
evaporation
- 9. Multiple Choice
The temperature above which a substance cannot exist in the liquid state is _________.
critical temperature
critical pressure
temperature
pressure
triple point
- 10. Multiple Choice
The temperature and pressure conditions at which the solid, liquid, and vapor of a substance can coexist at equilibrium is ______
critical point
triple point
double point
critical pressure
critical temperature.
- 11. Multiple Choice
When a certain amount of energy is
removed from a liquid sample, the liquid
sample will _____.
Burn
Diffuse
freeze
condense
Melt
- 12. Multiple Choice
Write the value of the critical pressure
according to the diagram.
0.01°C
374°C
0.006 atm
1.00 atm
218.3 atm
- 13. Multiple Choice
Water has a low vapour pressure due
to_.
high polarity
high volatility
strong hydrogen bonding
weak intermolecular forces
weak intramolecular forces
- 14. Multiple Choice
Which of the following phase changes is
correctly described
Solid → Gas = Deposition
Gas → Solid = Sublimation
Gas → Liquid = Evaporation
Solid → Liquid = Melting
Liquid → Solid = Evaporation
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