Question

On the basis of the kinetic theory of matter . explain why.
(a) solid have a fixed shape and fixed volume.

(b) liquid have a fixed volume but not a fixed shape​

Answer 1

1.If particles do not have enough kinetic energy to overcome the force of attraction between them, matter exists as a solid. The particles are packed closely together and held rigidly in place. All they can do is vibrate. This explains why solids have a fixed volume and a fixed shaped

2.Why the liquids have a definite volume and but no definite shape? Liquid molecules are also packed closely together, but there is enough space between the molecules to allow them to slide past each other. This sliding action prevents the liquid from taking a shape of its own.

Answer 2

Answer:

a) tge particles of a substance can only move uf they have kinetic energy to overcome the force of attraction and in solids the particles are very closely packed and have a greater force of attraction and they can only vibrate about their main positions and not move around the distance to the explain why solids have definite shape and a definite volume ..

b)however, in liquids the particles are able to move freely around but they have enough force of attraction to keep the molecules attached to each other so they can move freely in a contaimer they are in thus,the particles are still in close contact, so liquids have a definite volume.. but no definite shape it takes a shape dictated by its container...

hope this helps!