Answer
The statement is false.
Molar heat of vaporization is defined as the amount of heat which is required to vaporize one mole of a liquid to a gas. For vaporization of a liquid, breaking the intermolecular attractive forces present in the liquid phase is required. Thus, weaker attractive force in liquid means that less energy is required to overcome this attractive force; that means molar heat of vaporization of the liquid is low. If molecules have weaker intermolecular forces, then they have higher vapor pressure. Thus, higher vapor pressure implies a lower heat of vaporization.
Work Step by Step
The statement is false.
Molar heat of vaporization is defined as the amount of heat which is required to vaporize one mole of a liquid to a gas. For vaporization of a liquid, breaking the intermolecular attractive forces present in the liquid phase is required. Thus, weaker attractive force in liquid means that less energy is required to overcome this attractive force; that means molar heat of vaporization of the liquid is low. If molecules have weaker intermolecular forces, then they have higher vapor pressure. Thus, higher vapor pressure implies a lower heat of vaporization.