Heat Of Transformation (Noun)
Meaning
Heat absorbed or radiated during a change of phase at a constant temperature and pressure.
Classification
Nouns denoting natural phenomena.
Examples
- The heat of transformation of water from solid to liquid at 0°C is 334 J/g.
- During the process of vaporization, the heat of transformation of water from liquid to gas at 100°C is 2250 J/g.
- The heat of transformation of a substance can be measured using a calorimeter.
- At the melting point of a substance, the heat of transformation is equal to the heat of fusion.
- The heat of transformation of a substance can be positive or negative, depending on whether heat is absorbed or radiated during the phase change.