Question

Which one is a surface phenomenon? (a)Evaporation (b)Boiling (c)Both (a) and (b) (d)None of these

Answer 1

Answer:

Both a and b

Explanation:As while boiling and evaporation gases escape through the surface

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Answer 2

Answer:

evaporation

Explanation:

because water molecules escape itno atmosphere from surface and surface only heats up in evaporation but in boiling entire mass is heated and wat changes into gas rapidly.....

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