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प्रश्न
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.
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उत्तर
The smell of food is reaching her brother’s room because the particles of matter are constantly moving from one place to another place, through the process of diffusion.
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संबंधित प्रश्न
Comment upon the following:
rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density.
Fill in the following blank with suitable words :
Solid, liquid and gas are the three ........................ of matter.
Fill in the following blank with suitable words :
At room temperature, the forces of attraction between the particles of solid substances are ....................... then those which exist in the gaseous state.
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.
Give reason for the following observation :
The smell of hot sizzling food reaches us even from a considerable distance but to get the smell from cold food, we have to go close to it.
Why do gases diffuse very fast?
Why does a gas exert pressure?
______ is not affected by gravity.
Comment upon the following:-
filling a gas container
Comment upon the following:-
kinetic energy
