- why an iron almirah is a solid at room temperature?
- State the characteristics of matter demonstrated by: a)Diffusion b)Brownian motion
- Explain how the smell of food being cooked in kitchen reaches us even from considerable distance?
- Explain why diffusion occurs more quickly in gas than in liquids?
Asked by samaysahuji_0306
| 20th May, 2018,
03:33: PM
Expert Answer:
1. An iron almirah is solid because:
(i) It has a fixed shape (which cannot be changed by pressing it with hands).
(ii) It has a fixed volume (which depends on the dimensions according to which it is made).
2. (a) Diffusion:
(i) The matter is made up of tiny particles
(ii) The particles of matter are constantly moving.
(b) Brownian motion:
(i) The particles of matter are very, very small.
(ii) The particles of matter are constantly moving.
3. The smell of food being cooked reaches us even from a considerable distance is because of the process of diffusion.
4. Diffusion occurs more quickly in gases than in a liquid because the particles in gases move very quickly in all directions whereas the particles in liquids move slowly as compared to the gas particles.
(i) It has a fixed shape (which cannot be changed by pressing it with hands).
(ii) It has a fixed volume (which depends on the dimensions according to which it is made).
2. (a) Diffusion:
(i) The matter is made up of tiny particles
(ii) The particles of matter are constantly moving.
(b) Brownian motion:
(i) The particles of matter are very, very small.
(ii) The particles of matter are constantly moving.
Answered by Ramandeep
| 21st May, 2018,
09:59: AM
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