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Comment on the statement ‘evaporation is a surface phenomenon’. - Physics

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Comment on the statement ‘evaporation is a surface phenomenon’.

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Solution

Change of liquid into vapours at all temperatures from the surface is called evaporation. Evaporation takes place at the surface in those molecules which are at the surface and have sufficient K.E. to overcome attractive force due to inner surrounding molecules.

Concept: Difference Between Boiling and Evaporation
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APPEARS IN

Selina Concise Physics Class 8 ICSE
Chapter 6 Heat Transfer
Short/long Answer Questions | Q 7 | Page 120
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