Advertisements
Advertisements
Question
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance spreads in the whole room quickly. Which characteristic of the particles of matter is illustrated by this observation?
Advertisements
Solution
The spreading of fragrance of incense stick from a corner to the whole room indicates that particles of matter keep moving from higher to lower concentration.
APPEARS IN
RELATED QUESTIONS
What do you observe when a gas jar which appears empty is inverted over a gas jar containing Bromine vapours? Name the phenomenon.
Name the three states of matter and define them.
Give reason:
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
Name the phenomenon which cause the following change:
Conversion of water into steam.
Give reason Electricity is not considered matter .
The state of matter which has no definite shape or volume is called
Which single term is used to describe the mixing of copper sulphate and water kept in a beaker, on its own?
What is meant by 'diffusion'? Give one example of diffusion in gases.
When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.
- What could particles X be ?
- Name the gas (or mixture of gases) Y.
- What is the phenomenon exhibited by particles X known as ?
- What is causing the movement of particles X ?
- What conclusion does the existence of this phenomenon give us about the nature of matter ?
Fill in the blanks:
Matter is defined as anything that occupies _______ and has _______
