Answer:
C) a low heat of vaporization.
Explanation:
It is C) a low heat of vaporization.
Low heat of vaporization means less amount of energy is required to vaporize a liquid. This further means the liquid has weaker intermolecular force of attraction that is why on provide lesser heat only it vaporizes.
Low vapor pressure, high boiling point and high critical temp. all contribute to strong intermolecular forces in a liquid
A low heat of vaporization shows the presence of weak intermolecular forces in a liquid.
• The forces, which are electrostatic in nature and comprise hydrogen bonds and Van der Waals forces are known as the intermolecular forces.
• In liquids, the molecules are held to other molecules with the help of intermolecular forces, these are weaker in comparison to the intramolecular forces.
• The pressure resulting due to the evaporation of liquids is known as the vapor pressure. The vapor pressure is influenced by three elements, that is, intermolecular forces, surface area, and temperature.
• A low heat of vaporization signifies that less energy is enough for the liquids to vaporize, therefore, when the intermolecular forces are weak less energy will be enough to dissociate the association.
Thus, a low heat of vaporization indicates the presence of weak intermolecular forces in a liquid.
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