Question

03 Complete the statements by filliny, the blarks with the correct word from the bracket.
1 In naphthalene, the inter partide attractions(high/low)
2. The law of conversation of man, is strictly valid of mass andenergy/ volume) are considered together,
3. When inter particle space increases, the inter partide attractive force(decreses/increases)
4. Kinetic energy of molecules in helium is (large/ very large) comparedto the kinetic energy of molecules in water,
5. Conversion of vapour or gas into a liquid is termed (liqueaction/vaporization,)
A. Give reasons for the following
1. Particles of matter powess energy called kinetic energy
2 Solids cannot be compreved, but gases are highly compressible,
3. Kinetic energy of molecules of gases is very large ly of solids, the least,
4. On heating a sublimable solid, the molecules break free l escape from surface of the
solid directly into vapour,
5. Partides of matter move more rapidly on application of heat.
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Answer 1

Answer:

1 ) Low

2) Volume

3) Decrease

4) Very large

5) Vaporisation