According to Raoult's law, which statement is false?
◦ The vapor pressure of a solvent over a solution decreases as its mole fraction increases.
◦ The solubility of a gas increases as the temperature decreases.
◦ The vapor pressure of a solvent over a solution is less than that of pure solvent.
◦ The greater the pressure of a gas over a solution the greater its solubility.
◦ Ionic solutes dissociate in solution causing an enhancement of all colligative properties.