Respuesta :
The definitions for solid and fluids that include the ability of some solids to flow are:
Solids are substances whose molecules are tightly bound by strong forces of attraction, except for granular solids which have some abilities to flow because of a comparatively weaker force of attraction.
Fluids are substances whose molecules have weak forces of attraction. Hence the abilities of fluids to flow
Solids are substances whose molecules are tightly bound together. Molecules of solids have low Kinetic Energy. Since the molecules are tightly packed, solids have definite shape and volume. However granular solids have lesser force of attraction than other solids, and their molecules have slightly higher Kinetic Energy, hence their ability to flow.
Liquids are substances whose molecules have forces of attraction that are weaker than that if solids. This means that they are more loosely bound than the molecules of solids. Liquids have definite volume but not definite shape. Liquids flow from higher to Lower level.
Molecules of gases are bound by very weak forces of attraction. Hence they have no definite shape and volume. They have a random and haphazard movement.
Therefore, the definitions for solid and fluids that include the ability of some solids to flow are:
Solids are substances whose molecules are tightly bound by strong forces of attraction, except for granular solids which have some abilities to flow because of a comparatively weaker force of attraction.
Fluids are substances whose molecules have weak forces of attraction. Hence the abilities of fluids to flow
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