This process is forbidden beyond the critical point.
Reactions in which the reagents undergo this process may be conducted at reflux to prevent a loss of product. Theoretical plates arise when this endothermic process exactly balances its inverse. "Chips" made of alumina are used to promote one type of this process in the laboratory. This process is forbidden beyond the critical point. Distillation separates mixtures based on differences in the way this process occurs. The temperature at which one type of it occurs is colligatively raised by solutes. Substances may undergo the "flash" type of this process if nucleation sites are suddenly added. For 10 points, name this phase change in which a liquid turns into a gas.
Reactions in which the reagents undergo this process may be conducted at reflux to prevent a loss of product.
vaporization [or boiling; or evaporation; or word forms]