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Question

Whenever a bottle of perfume is opened in a corner, we can identify its smell across the room. Choose the correct option of what happens in this process.


A

Perfume molecules move from a high concentration area to a low concentration area.

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B

Perfume molecules spread through gaps between the air particles.

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C

They diffuse.

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D

They are carried by the person who opens the bottle.

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Solution

The correct options are
A

Perfume molecules move from a high concentration area to a low concentration area.


B

Perfume molecules spread through gaps between the air particles.


C

They diffuse.


Whenever there is a bottle of perfume is opened in one corner, we can identify its smell across the room because the molecules of the perfume are high in concentration in the bottle and their concentration is lower outside. So they spread from area of high concentration to the area of low concentration in the air around, through the gaps between the molecules of air in the room. This process is known as Diffusion.


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