Phase Changes Gizmo – Flashcards
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The graph represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, what will happen to the temperature and volume of water in the pot? (All temperatures in °C.)
answer
The temperature will remain constant, and the water volume will decrease.
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Which of the following statements is most accurate?
answer
All of the above.
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In a pressure cooker, a lid is screwed tightly onto a pot so that the air pressure in the pot is increased. What effect, if any, will this have on the boiling point of water in the pot?
answer
The boiling point will be raised.
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Which of the following descriptions explains the process of water freezing?
answer
Water molecules slow down until they begin to bond together.
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Which of the graphs below illustrates water boiling in Denver, Colorado? (Altitude 1,600 meters.)
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Graph A
