Answer: 334 J/g.
- A 334 J/g
- B 2260 J/g
- C 4.2 J/g
- D 100 J/g
Correct answer: A. 334 J/g
Explanation: About 334 J are needed to melt 1 g of ice at 0°C.
During a phase change (melting or boiling), temperature stays constant while heat is absorbed entirely as latent heat (Q=mL); temperature only rises again once the substance is fully in its new phase.
Concept context
Temperature scales, thermal expansion, calorimetry, and the three modes of heat transfer including radiation laws.