Question

The critical temperature of water is higher than that of $O_2$ because the $H_2O$ molecule has

• A. fewer electrons than $O_2$
• B. two covalent bonds
• C. V-shape
• D. dipole moment

Answer 1

Answer: (D)

dipole moment

Answer 2

Critical temperature is directly proportional to intermolecular force of attraction. $H_2O$is a polar molecule, has greater intermolecular force of attraction than $O_2$, hence higher critical temperature.