During vaporization, what does the supplied heat primarily do to the liquid?
During vaporization, the supplied heat (latent heat of vaporization) breaks intermolecular bonds to convert the liquid into vapor, without changing its temperature. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Converts it to vapor without temperature change. This satisfies dimensional consistency and physical conditions given, so option A is scientifically correct.
Ref: NCERT Class 11 Physics, Chapter 11: Thermal Properties – Calorimetry.