Advertisements
Advertisements
प्रश्न
Explain why, when a bottle of perfume is opened in a room, we can smell it even from a considerable distance.
Advertisements
उत्तर
When a bottle of perfume is opened in a room, the particles of perfume, start diffusing into the air surrounding the bottle. These particles of perfume keep moving towards a region of lower concentration by the virtue of their kinetic energy. Thus, when a bottle of perfume is opened, we can smell perfume even from a distance.
APPEARS IN
संबंधित प्रश्न
Give reasons:
We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
Name two gases which are supplied in compressed form in homes and hospitals.
Name the three states of matter. Give one example of each.
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.
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 :
______ is not affected by gravity.
Comment upon the following:-
rigidity
Comment upon the following:-
filling a gas container
Comment upon the following:-
shape
