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Boiling and Evaporation

Boiling and evaporation is very often confused. Lets look at the definition and comparisons of boiling and evaporation. 

Boiling  

Boiling is the change of state from liquid to gaseous state, occurring at a fixed temperature called the boiling point.

Evaporation

Evaporation is the change of state of a liquid into gaseous state, at any temperature. Evaporation causes cooling. Rate of evaporation depends on the following factors... ...

  • Temperature
  • Humidity of the surrounding 
  • Surface area
  • Pressure
  • Nature of liquid 

Lets look at the following table comparisons between Boiling and Evaporation.  

Boiling Evaporation
Occurs at fixed temperature. Occurs at any temperature.
Occurs throughout the liquid. Occurs at the surface of the liquid.
Occurs quickly. Occurs slowly.
Bubbles are formed in the liquid. No bubbles formed in the liquid.

  

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