Phase Changes Gizmo
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.) - correct answer
The temperature will remain constant, and the water volume will decrease.
Which of the following statements is most accurate? - correct answer
All of the above.
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? - correct answer The boiling point will be
raised.
Which of the following descriptions explains the process of water freezing? - correct
answer Water molecules slow down until they begin to
bond together.
Which of the graphs below illustrates water boiling in Denver, Colorado? (Altitude
1,600 meters.) - correct answer Graph A
