Boiling vs Evaporation Class 9 chapter 1

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=I0cXPt3vsNw

In this video you will come to know all about boiling and evaporation. Some important points are given below: • Boiling : • 1. Boiling takes place at a particular temperature when the liquid is heated. • 2. Boiling is a bulk phenomenon, i.e., it involves formation of bubbles of the vapours from bulk (whole) of the liquid. • 3. No cooling is caused during boiling. • Evaporation : • 1. Evaporation occurs on its own at all temperatures. • 2. Evaporation is a surface phenomenon, i.e., it takes place only from the surface of the liquid. • 3. Evaporation always causes cooling. • #Evaporation • #Boiling

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