Intermolecular forces such as dipole-dipole forces, London dispersion forces exist between molecules. The state of matter of a substance at a given temperature is determined by the relationship between molecules.
Intermolecular forces of attraction is force of attraction that make two molecule come closer. Intermolecular forces of attraction is directly proportional to the electronegativity of the molecule.
At a given temperature, the state of any matter can be defined on the basis of presence of forces of attraction between the molecules of the matter.
Thus, the state of matter of a substance at a given temperature is determined by the relationship between molecules.
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