Question

[1]
Which of the following statement is correct?
(a) boiling is a bulk phenomenon and evaporation is a surface phenomenon
(b) boiling is a surface phenomenon and evaporation is a bulk phenomenon
(c) boiling and evaporation both are surface phenomenon
(d) boiling and surface both are bulk phenomenon
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BASIS
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Answer 1

Answer:

the correct ans is option a

Answer 2

Answer:

Option- A

Explanation:

evaporation is the surface phenomenon as the liquid changes into vapours at any temperature with respect to surface. while boiling a liquid ,say water or milk heating is to be done from the bottom of the vessel to bring the temperature of the entire liquid to its boiling point (water =100°celsius ).In boiling extra heat is provided and heat acts on whole amount of water and water gets evaporated.

Summary of the answer- in evaporation the molecule at the surface of the work surface of water only get evaporated by  Latent heat from environment.

By this we can conclude that- Evaporation is a surface phenomenon while boiling is bulk phenomena.