Why are liquids liquids?

Answer 1

The answer of this question is similar to the questions why solids are solid and gases are gas? The answer is that in solids the intermolecular forces between the atoms of solid is very strong and they bound each other very strongly. The atoms of the solid can't move here and there and they have definite shape and called solids. Similarly gasses are those in which intermolecular forces are very week and the atoms can't held each other strongly and that's why the atoms separated randomly and they called gasses. As liquid is the intermediate state between solid and gas similar to this the intermolecular forces among the atoms of the liquid is less than solid but more than gasses. Due to such kind of forces liquid neither get a definite shape nor the atoms separated but the atoms can move within a definite area and can squire any shape and that's why they are called liquid.