How does intermolecular force of attraction is responsible for a change of state?
2 answers
Intermolecular forces hold things together. The stronger the force, the more energy will be required to break apart the particles from solid to liquid (melting) or liquid to gas (vaporization).
When the intermolecular foces of matter s stronger , the more energy will be required. More energy required to concert solid to liquid or liquid to gas...but less energy is required to change gas to liquid or liquid to solid.