Advertisements
Advertisements
प्रश्न
Comment upon the following:-
density
Advertisements
उत्तर
Density is mass per unit volume.
संबंधित प्रश्न
Which of the two diffuses faster : a liquid or a gas?
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.
Which of the following diffuses fastest and which the slowest?
Solid, Liquid, Gas Give reasons for your answer.
What does the diffusion of gases tell us about their particles?
Explain why, when a bottle of perfume is opened in a room, we can smell it even from a considerable distance.
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
Why does a gas fill a vessel completely?
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 :
Look at the diagram on the right side. Jar A contains a red-brown gas whereas jar B contains a colourless gas. The two gas jars are separated by a galas plate placed between them
- What will happen when the glass plate between the two jars is pulled away?
- What name is given to the phenomenon which takes place?
- Name the brown gas which could be in jar A.
- Which is the colourless gas most likely to be present in jar B?
- Name one coloured solid and one colourless liquid which can show the same phenomenon.
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
