The heat of vaporization is the heat that is absorbed to transform a substance from its liquid state to its vapor, that is, to boil or evaporate the liquid substance completely. In common usage, the heat of vaporization is used in place of the more...

When a substance changes phase from liquid to gas, heat energy is required. The heat energy that is used to transform a liquid into a gas, or vapor, is called the heat of vaporization. As thermal energy is applied to a volume of a given liquid at a...

The federal Environmental Protection Agency last week approved a Massachusetts plan to require that the volatility of gasoline sold in the state be reduced as a means of combating air pollution. The agency indicated that it would also approve the applications of several...

A standard approach for the numerical modeling of macroscopic phase change processes in the convection-diffusion problem is the so-called "fixed-grid enthalpy-based" method.[1 ] In this method, the enthalpy is related to the liquid volume fraction of fluid in a control volume, which, in turn,...