Question

Which of the following gas molecules have a maximum value of enthalpy of physisorption?

• A. $C_2{H}_6$
• B. $Ne$
• C. $H_2$
• D. $H_{2}O$

Answer 1

The correct option is D $H_{2}O$

Water $H_{2}O$ molecules have a maximum value of enthalpy of physisorption. Water molecules are associated through hydrogen bonds. During physisorption, they form hydrogen bonds with the substance on which they are adsorbed.

Hence, the correct option is $\text{D}$