Advertisements
Advertisements
प्रश्न
Give a reason for the following observation.
We can get the smell of perfume sitting several metres away.
उत्तर
Perfume is also a volatile liquid. It immediately turns into vapour and diffuses into the air, which is why we can smell it even if we are sitting far away. This phenomenon occurs as a result of diffusion.
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.
Write the full forms of the following
- LPG
- CNG
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.
Give two reasons to justify that Water is a liquid at room temperature.
Give one example of diffusion of gases in a liquid.
Why does a gas fill a vessel completely?
______ is not affected by gravity.
Comment upon the following:-
kinetic energy
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
2 litre He gas at 2 atm and 300 K is inserted into a 4 litre rigid container containing N2 at 600 K and 4 atm. Finally mixture is maintained at 600 K temperature. The final pressure of gaseous mixture would be ______ torr.