
Ammonia Phase Changes and Properties

Interactive Video
•
Chemistry, Science, Physics
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the triple point in a phase diagram?
It is the point where only the solid phase exists.
It is the point where only the liquid phase exists.
It is the point where all three phases are in equilibrium.
It is the point where only the gas phase exists.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the phase diagram of ammonia, what does the critical point represent?
The temperature and pressure where ammonia is only a solid.
The temperature and pressure above which ammonia cannot be liquefied.
The temperature and pressure where ammonia is only a gas.
The temperature and pressure where ammonia is only a liquid.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing pressure affect ammonia at room temperature?
It turns into a liquid if pressure is high enough.
It evaporates completely.
It remains a gas.
It turns into a solid.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does solid ammonia have a greater density than liquid ammonia?
Because it has a larger volume.
Because it has a smaller volume.
Because it is at a lower pressure.
Because it is at a higher temperature.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the heat of fusion?
The energy required to boil a substance.
The energy required to freeze a substance.
The energy required to condense a substance.
The energy required to melt a substance at its melting point.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the temperature of a substance during its melting point when heat is added?
The temperature fluctuates.
The temperature remains constant.
The temperature decreases.
The temperature increases.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the heat of vaporization?
The energy required to boil a substance at its boiling point.
The energy required to melt a substance.
The energy required to freeze a substance.
The energy required to condense a substance.
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