Evaporation takes place when the particles of liquid at the surface change into gas phase.

It is a surface phenomenon as only the liquid particles at the surface gain enough energy to break free from the rest of the liquid to escape into a gaseous phase. The bulk of the liquid remains relatively unaffected in the process.


  1. Class 9
  2. Chapter 1 Class 9 - Matter In Our Surroundings

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.