Chapter 11, Problem 101RQ

The following are the vapor pressures of some relatively common chemicals measured at $\text{20 °C}$:

Benzene, ${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}$	80 torr
Acetic acid, ${\text{HC}}_{\text{2}}{\text{H}}_{\text{3}}{\text{O}}_{\text{2}}$	11.7 torr
Acetone, ${\text{C}}_{\text{3}}{\text{H}}_{\text{6}}\text{O}$	184.8 torr
Diethyl ether, ${\text{C}}_{\text{4}}{\text{H}}_{\text{10}}\text{O}$	442.2 torr
Water, ${\text{H}}_{\text{2}}\text{O}$	17.5 torr

Arrange these substances in order of increasing inter- molecular attractive forces.