Which of the following is true about latent heat during a phase change?
Latent heat is the heat absorbed or released per unit mass during a phase change without a temperature change (Section 10.8.1, Q = mL). As per NCERT, applying relevant law/formula with correct units and sign convention leads to It changes the state without changing temperature. This satisfies dimensional consistency and physical conditions given, so option D is scientifically correct.
Ref: NCERT Class 11 Physics, Chapter 11: Thermal Properties – Calorimetry.