Phase Changes Test Questions and Answers Graded A+

Phase Changes Test Questions and Answers Graded A+

1. A substance that has A solid substance turns into a liquid. Which best describes this change?
a specific shape and
volume changes to a
substance that has a
specific volume.

2. from a gas to a liquid Water is initially present in a state where its molecules are far apart. During
a change of state, its molecules slow down. Which change of state has most
likely taken place?

3. sublimation In which phase transition do molecules directly move from a state involving
vibration of particles in a fixed position to a state involving random move-
ment of high-speed particles?

4. 5 The diagram below shows the ditterent phase transitions that occur in
matter.
Which arrow would most likely represent the phase change that occurs
when silver is poured into a mold and cools to become a solid bar?




5. Heat energy is ab- Which energy change occurs during boiling?
sorbed by the sub-
stance.

6. Heat energy is re- Which best describes the energy change that takes place during deposition?
leased by the sub-
stance.

7. during sublimation When does carbon dioxide absorb the most heat energy?


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