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प्रश्न
Comment upon the following:-
density
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उत्तर
Density is mass per unit volume.
संबंधित प्रश्न
Give a reason for the following observation.
Naphthalene balls disappear with time without leaving any solid.
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
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.
What does the diffusion of gases tell us about their particles?
Why do gases not have fixed shape?
Comment upon the following:-
kinetic energy
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
Which of the following is TRUE about gaseous state?
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 ______.
