Describe an activity to observe the diffusion of gases.

1.	Describe an activity to observe the diffusion of gases.
Answer» 1. Ask your friend to hold an unlit incense stick and stand in one corner of the room. 2. Then you go and stand in the other corner. 3. We cannot observe any smell (This depends on the type of incense stick). 4. Now ask your friend to light the incense stick. 5. After a few seconds, we can observe the smell of incense stick. 6. The scent in the vapour form and smoke mixes with air and moves across the room and reaches our nose. 7. This activity proves that the gases can diffuse.

Answer»

1. Ask your friend to hold an unlit incense stick and stand in one corner of the room.

2. Then you go and stand in the other corner.

3. We cannot observe any smell (This depends on the type of incense stick).

4. Now ask your friend to light the incense stick.

5. After a few seconds, we can observe the smell of incense stick.

6. The scent in the vapour form and smoke mixes with air and moves across the room and reaches our nose.

7. This activity proves that the gases can diffuse.

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