Advertisements
Advertisements
Question
Give reasons
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar
Solution
This is because Gases can diffuse or flow in all directions.
APPEARS IN
RELATED QUESTIONS
Give one example of the diffusion of a solid in another solid.
Arrange the following substances in increasing order of force of attraction between their particles (keeping the substance having the minimum force of attraction first) : Water, Sugar, Oxygen
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, L.P.G, carbon- dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Fill in the blanks:
The physical state of a substance, which has neither fixed volume nor fixed shape is a ______.
Describe simple experiments to prove that liquids have a definite volume
See the given pictures and write down the state of each object. (Solid, Liquid, Gas)
![]() |
![]() |
![]() |
![]() |
![]() |
_____ | ______ | ______ | ______ | ______ |
![]() |
![]() |
![]() |
![]() |
![]() |
______ | _______ | ______ | ______ | ______ |
______ soil is suitable for growing cotton.
Strainer is a kind of sieve which is used to separate a liquid from solid.
Complete the Analogy.
Bucket: Plastic:: Table: ______.
A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]