The energy involved in change of state
1 mark · NormalWhich statement best describes what happens during the boiling of a liquid?
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Correct option: The energy supplied is used to overcome the forces between the particles, so temperature remains constant.
Common mistakes: Choosing answer B (speed increases)
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Marking points
B1 · 1 mark · Correct answer selected.
Worked solution
During boiling, the temperature stays constant. The energy supplied is used to overcome the attractive forces between particles to allow them to change from liquid to gas.