Advertisements
Advertisements
प्रश्न
What does the diffusion of gases tell us about their particles?
उत्तर
The diffusion of gases tells us that:
- Matter consists of tiny particles, that have space between them.
- The particles of matter are in constant motion.
APPEARS IN
संबंधित प्रश्न
Give reasons:
A gas exerts pressure on the walls of the container.
Name two gases which are supplied in compressed form in homes and hospitals.
Which of the two diffuses faster : a liquid or a gas?
Which of the following diffuses fastest and which the slowest?
Solid, Liquid, Gas Give reasons for your answer.
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room. Name the process involved in this.
A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother's room. Explain how the smell could have reached her brother's room.
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment :
Comment upon the following:-
density
![]() |
|
Fig. I | Fig. II |
In figure-I, an air column of length ℓ1 is entrapped by a column of Hg of length 8 cm. In figure-II length of same air column at the same temperature is ℓ2. The `ℓ_1/ℓ_2` is:
(1 atm = 76 cm of Hg)
A gaseous mixture of He and O2 is found to have a density of 0.518 gL-1 at 25° C and 720 torr. The mass percent of helium in this mixture is ______.