Advertisements
Advertisements
प्रश्न
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
Advertisements
उत्तर
The gases which dissolve in water by diffusion are carbon dioxide and oxygen. Carbon dioxide dissolved in water bodies is essential for the survival of the aquatic plants as they use this carbon dioxide to make food by photosynthesis. Oxygen dissolved in water is used by aquatic animals for breathing.
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.
Give a reason for the following observation.
We can get the smell of perfume sitting several metres away.
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.
Give one example of diffusion of gases in a liquid.
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.

A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
How does the substance of gaseous particles change to a liquid state?
Comment upon the following:-
filling a gas container
Which of the following is false for gases?
