Question

answer the following

Answer 1

Answer:

a. Any matter that is a solid has adefinite shapeand a definite volume. The molecules in a solidare in fixedpositions and are close together. Although the molecules can still vibrate, they cannot move from one part of the solid to another part. As a result, a solid does not easily change its shape or its volume.

b.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. As a result, liquids take the shape of the container that holds them. The particles in liquids are much farther apart than the particles in solids, and they're also moving around much more . Even though the particles are farther apart in liquids than in solids, some particles in liquids may still be near each other, clumped together in small groups. Because the particles are farther apart in liquids, the attractive forces among them aren't as strong as they are in solids which is why liquids don't have a definite shape. However, these attractive forces are strong enough to keep the substance confined in one large mass instead of going all over the place.

c.The force of attraction between the molecules of gases is least as compared to solids and liquids. The kinetic energies between the molecules is high enough to break away from any boundaries and they move randomly. Thus, gases do not have definite shape and volume.

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