Question

among the following is a surface phenomenon?
A. condensation
B. freezing
C. boiling
D. evaporation ​

Answer 1

Answer:

D

Explanation:

Adsorption is the capability of all solid substances to attract to their surfaces molecules of gases or solutions with which they are in contact. Evaporation is a surface phenomenonbecause it occurs in the surface.

Answer 2

Option (D)

Explanation:

Evaporation is usually defined as the process by which the liquid substance is converted into gaseous state.

The water molecules present in the upper surface region and the lower region of the water body is bonded in different ways. At the surface, these water molecules are loosely linked with one another, in comparison to the bonding of water molecules at a certain depth. This refers to the hydrogen bonding in water.

When the temperature rises, then the process of evaporation occurs, as a result of which the molecules are easily disintegrated at the surface. It is due to this, the process of evaporation is commonly considered as a surface phenomenon.

Thus, the correct answer is option (D).

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