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प्रश्न
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions
विकल्प
Solid
Liquid
Gas
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उत्तर
Gas
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संबंधित प्रश्न
Give two reasons for saying that wood is a solid.
Give reasons
Liquids have definite volume but no definite shape
Describe simple experiments to prove that solids occupy space
Describe simple experiments to prove that gases have no definite volume or shape.
Particles in solids are free to move.
Match the following.
| Srl. no. | A | B | C |
| i | Separation of visible undesirable components | Water mixed with chalk powder | Magnetic Separation |
| ii | Separation of heavier and lighter components | Sand and water | Decantation |
| iii | Separation of insoluble impurities | Iron impurities | Filtration |
| iv | Separation of magnetic components from non-magnetic components | Rice and stone | Hand-picking |
| v | Separation of solids from liquids | Husk and paddy | Winnowing |
______ particles are tightly packed into a definite shape.
The tendency of particles to spread out in order to occupy the available space is ______.
Give two examples of diffusion.
The density of solid Argon is 1.6 ml at - 233°C. If the Argon atom is assumed to be sphere of radius 1.5 × 10-8 cm, then the ______ % of solid Argon is apparently occupied.
[Take : NA = 6 × 1023, Atomic mass of Ar = 40]
