Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
The vapours of the fried fish travel from one place to another through the process of diffusion.
APPEARS IN
संबंधित प्रश्न
Give reasons:
A gas fills completely the vessel in which it is kept.
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
Fill in the following blank with suitable words :
At room temperature, the forces of attraction between the particles of solid substances are ....................... then those which exist in the gaseous state.
State two characteristic properties of a gas.
Explain why, when a bottle of perfume is opened in a room, we can smell it even from a considerable distance.
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.

Comment upon the following:-
compressibility
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 ______.
