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Question
Which among the following is a surface phenomenon?
Which among the following is a surface phenomenon?
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Solution
The correct option is B Evaporation
Evaporation is a surface phenomenon because it occurs on the surface. For example, when we put wet clothes for drying we spread them out so that the surface area gets increased. When the surface area increases the water will get enough space to get into the vapour stage and thus evaporation happens easily.
While boiling, freezing and melting are bulk phenomena.
Evaporation
Evaporation is a surface phenomenon because it occurs on the surface. For example, when we put wet clothes for drying we spread them out so that the surface area gets increased. When the surface area increases the water will get enough space to get into the vapour stage and thus evaporation happens easily.
While boiling, freezing and melting are bulk phenomena.
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