Super heat may be described as the amount of heat added to the refrigerant after it has done what?

Superheat refers to the process where refrigerant is heated beyond its boiling point after it has evaporated. In the refrigeration cycle, once the refrigerant absorbs heat from the surroundings and changes from liquid to gas, it goes through the evaporation process. The superheat is the additional heat added to this vaporized refrigerant, which raises its temperature above that of the boiling point at a given pressure.

By adding superheat, the refrigerant ensures that all of it is in gaseous form before it reaches the compressor. This is crucial because if liquid refrigerant enters the compressor, it can cause damage. Thus, understanding superheat is essential in optimizing system efficiency and preventing potential mechanical issues.

The other choices are related to different stages of the refrigeration cycle but do not pertain specifically to the phase where superheating occurs. This distinction clarifies why the correct answer centers around the evaporation of the refrigerant.