A certain amount of matter in a change of state liquid-gas or vice versa.
|Name:||Name of the change liquid-gas.|
|m:||Mass of matter involved in the change.|
|cv:||Heat of vaporization (in Joules per kilogram).|
|Sense:||Sense of change of state, > (greater than) indicates a change of state from liquid to gas. Whereas that < (less than) indicates the opposite process.|