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प्रश्न
Which of the following statement is incorrect?
पर्याय
the particles of matter are very, very small
the particles of matter attract one another
the particles of some of the matter are moving constantly
the particles of all the matter have spaces between them
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उत्तर
The particles of some forms of matter move constantly
The statement that the particles of some forms of matter move constantly is incorrect because the particles of matter of all three states– solid, liquid and gas –are moving constantly. Although the particles of solids are fixed at their positions, they vibrate constantly.
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संबंधित प्रश्न
Give reason for the following.
Pure substances have fixed melting or boiling points.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions.
What is the general name of :
- rigid form of matter ?
- fluid forms of matter ?
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 ?
A crystal of iodine is placed in a closed flat bottom flask and heated. State how you would conclude from the observations seen, that interparticle space is minimum in solids and maximum in gases.
Fill in the blank:
The intermolecular force of attraction is ___________ in solids.
State in which of the following examples ie. a piece of wood, water, light gas is the Inter-particle space maximum.
In which of the three states of matter – solids, liquids, or gases is the movement of atoms about their own position. Give a reason for the same.
Complete the statement by filling the blank with the correct word given below.
When inter-particle space increases, the inter-particle attractive force _______________.
Give the reason for the following
Particles of matter move more rapidly on the application of heat.
