Physics 5054 · O Level · Melting, boiling and evaporation

Melting, boiling and evaporation — practice question

When a substance boils or melts, it either absorbs energy or releases energy. Which row shows the energy transfer for the change of state?

  • Aduring boiling: gives out energy; during melting: gives out energy
  • Bduring boiling: gives out energy; during melting: takes in energy
  • Cduring boiling: takes in energy; during melting: gives out energy
  • Dduring boiling: takes in energy; during melting: takes in energy

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