The factor that has the largest effect on the vapor pressure of a molecular substance is ________.
A)liquid surface area
B)molecular dipole moment
C)presence of H-bonding
D)liquid mole weight
E)volume available for vapor

Question

Quizplus · Accepted Answer

The presence of H-bonding has the largest effect on vapor pressure because it affects the intermolecular forces and the tendency for molecules to escape into the gas phase. H-bonding creates stronger intermolecular forces and therefore a lower vapor pressure.

The Factor That Has the Largest Effect on the Vapor