Which of the following statements is TRUE?
A) Vapor pressure increases with temperature.
B) Hydrogen bonds are stronger than covalent bonds.
C) Intermolecular forces hold the atoms in molecules together.
D) Dispersion forces are generally stronger than dipole-dipole forces.
E) None of the above is true.

Question

Quizplus · Accepted Answer

Vapor pressure is the pressure exerted by the vapor of a liquid in equilibrium with its own liquid phase at a given temperature. The higher the temperature, the more molecules in the liquid have enough kinetic energy to overcome the intermolecular forces keeping them in the liquid phase and escape into the gas phase, resulting in an increase in vapor pressure.

B is false because hydrogen bonds are a type of covalent bond, and typically not stronger than other types of covalent bonds.
C is false because intramolecular forces hold the atoms within a molecule together, while intermolecular forces hold different molecules together.
D is false because dipole-dipole forces are typically stronger than dispersion forces.

Which of the Following Statements Is TRUE