Advertisements
Advertisements
प्रश्न
Give two reasons to justify that Water is a liquid at room temperature.
Advertisements
उत्तर
Water is a liquid at room temperature due to the following characteristics:
- Water has fixed volume, but no fixed shape.
- Water flows freely.
Particles of water have large intermolecular spaces between them and intermolecular force of attraction between these particles is small. These characteristics facilitates water to behave like a liquid.
APPEARS IN
संबंधित प्रश्न
Comment upon the following:
rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density.
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
A bottle of perfume was opened in a room. The smell of its vapours spread in the entire room. Name the property of gases which is responsible for this behaviour of perfume vapours.
If the fish is being fried in a neighbouring home, we can smell it sitting in our own home. Name the process which brings this smell to us.
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.
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
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:-
rigidity
Comment upon the following:-
compressibility
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
