Question

Q3. Fill in the blanks :

1. Particles in gas possess ___________kinetic energy.
2. The temperature at which liquid changes to vapors is called as __________.
3. The negatively charged particle of an atom is called _______
4.__________ surrounds the nucleus in which electrons revolve.
5. Boron is a _________.
6. Alloy is a type of__________ mixture.
7. Sublimation involves a____________ change.
8. ___________ is a sub - atomic particle.

Answer 1

Answer:

1.=Particles of matter possess energy called kinetic energy. Solid cannot be compressed, but gases are highly compressible. The Kinetic energy of molecules of gases is very large & solids the least. On heating a sublimable liquid, the molecules break free & escape from the surface of the solid directly into vapour.

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