👉 Vapourishness is a scientific concept in the field of thermodynamics, specifically within the realm of heat transfer and energy. It refers to the phenomenon where a substance exhibits a low temperature at its surface but has a high density when it cools down or freezes. In other words, vapourishness occurs when the temperature of a substance is lower than its freezing point (i.e., below its dewpoint) yet the substance still possesses sufficient thermal energy (i.e., heat capacity)