Phase Change: Solid to Liquid

Steps:

• Identify the initial and final states: solid to liquid.
• Recall common phase changes: melting (solid to liquid), freezing (liquid to solid), vaporization (liquid to gas), condensation (gas to liquid).
• Match the description to the term: solid absorbing heat to become liquid is melting.
• Eliminate options that describe other transitions.

Why D is correct:

• Melting is defined as the phase change where a solid turns into a liquid by absorbing thermal energy, breaking intermolecular bonds.

Why the others are wrong:

• A. Boiling describes liquid changing to gas at the boiling point.
• B. Condensation is gas changing to liquid.
• C. Evaporation is liquid changing to gas below the boiling point.

Final answer: D