Three unknown molecular solids A, B

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

Three unknown molecular solids A, B, and C exhibit vapor pressures of

1.2\,\text{Torr}

0.08\,\text{Torr}

, and

18\,\text{Torr}

, respectively, at

0^\circ\text{C}

. Which ranking of the strength of the intermolecular forces in the solids is most consistent with these data, from strongest to weakest? (a)

B>A>C

(b)

A>B>C

(c)

C>A>B

(d)

A>C>B