The amount of energy needed to change state from solid to liquid and from liquid to gas depends on the strength of the forces between the particles of the substance. The stronger the forces between the particles the higher the melting point and boiling point of the substance.
Explain the limitations of the particle theory in relation to changes of state .
it often depicts particles as simple, identical spheres with no consideration for the forces of attraction between them
what do the four state symbols mean? (s),(l),(g),(aq)
