LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Smell of perfume across the room
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Placing a teabag in a glass of water
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Red ink on a shirt
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Water droplets on a cold surface
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Detailed explanation-1: -A tea bag immersed in a cup of hot water will diffuse into the water and change its colour. A spray of perfume or room freshener will get diffused into the air by which we can sense the odour. Sugar gets dissolved evenly and sweetens the water without having to stir it.
Detailed explanation-2: -diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. A familiar example is the perfume of a flower that quickly permeates the still air of a room.
Detailed explanation-3: -Since perfume is either a gas or liquid thus, in both cases it can easily get mixed with the air particles. This mixing of perfume particles into the air and reaching the other corner of the room is through the process of diffusion. This is how diffusion works in the case of perfume.