The energy involved in change of state
1 mark · NormalWhich statement best describes the change in energy as a substance boils at its boiling point?
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Correct option: The supplied energy is used to break the bonds between particles.
Common mistakes: Choosing temperature increases
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Marking points
A1 · 1 mark · Correct choice: Energy is used to break bonds between particles during boiling
Worked solution
During boiling, energy is used to overcome the forces holding particles together, so the substance can change to a gas.