Question 316General Subjects - Assistant Engineer

The correct answer is D) Latent heat of vaporization. Latent heat of vaporization is defined as the amount of heat required to convert a unit mass of a substance from a liquid to a vapor at constant temperature and pressure. This is the energy required to overcome the intermolecular attractive forces and change the physical state of the substance without changing its temperature. The other options are incorrect because: A) Latent heat of fusion refers to the heat required to change a substance from a solid to a liquid. B) Specific heat of vaporization refers to the heat required to raise the temperature of a vapor. C) Sensible heat of vaporization refers to the heat required to raise the temperature of a liquid to its boiling point.