Difference between boiling and evaporation


The table below illustrates the differences between boiling and evaporation.

Boiling Evaporation
A process in which a substance changes its state from the liquid state to the gaseous state A process in which a substance changes its state from the liquid state to the gaseous state without boiling
Fast Slow
Bubbles are formed No bubbles formed
Occurs throughout the liquid Takes place only from the exposed surface of the liquid
Occurs at a definite temperature – Boiling point Occurs at all temperature
 Source of energy needed  Energy supplied by surroundings

 


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