Question

Q.1 The melting points of three solids X ,Y and Z are 298 K , 314 k and 398 K respectively. Arrange these
in increasing order of their interparticle force of attraction.
Q.2 Give reason for the following :
(i) Gases exert pressure on the walls of the container .
(ii) Sponge is solid but still it can be compressed .
Q.3 Suggest an activity to show that the rate of diffusion of liquids decreases with increase in density of the
liquid .
Q.4 Explain the term density .Arrange different states of matter in increasing order of density.
Q.5 (a) Carbon dioxide is a gas.Write its two gaseous properties to justify it.
(b) How can we liquefy a gas?

Answer 1

Answer:

 if the melting point of a soild is high then its the inter particle force of attraction will be also high

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melting point is directly proportional to force of attraction

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increasing order

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Z(398) -------------> Y(314) ------------>X (298

Explanation: