Answer: 3340 J.
- A 334 J
- B 3340 J
- C 33.4 J
- D 33,400 J
Correct answer: B. 3340 J
Explanation: Q = mL = 10 g × 334 J/g = 3340 J.
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.