Answer: J/(kg·K).
- A J/kg
- B J/(kg·K)
- C J/K
- D cal/g
Correct answer: B. J/(kg·K)
Explanation: Specific heat capacity is heat per unit mass per unit temperature rise, so its SI unit is J/(kg·K).
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.