Question

). The state of matter which is highly rigid, has definite volume & has infinite free surfaces

(ii). The state of matter which is least rigid, has no definite volume & no free surface

(iii). The state of matter is less rigid, has definite volume & has one upper free surface

(iv) The energy possessed by particles of matter.

(v). The process of change of a liquid into vapour (gas) on heating

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Answer 1

Answer:

(i) The state of matter which is highly rigid and has definite volume & has infinite free surfaces is solid matter.

(ii) The state of matter which is least rigid and has no definite volume & no free surface is gaseous matter.

(iii) The state of matter which is less rigid and has definite volume & has one upper free surface is liquid matter.

(iv) Energy possessed by particles due to motion is kinetic energy. Particles of solid cannot move around because they are closely packed, hence they have least kinetic energy.

v). The process of change of a liquid into vapour (gas) on heating is called vaporization.