Question

What can you say about the strength of the intermolecular forces in neon and argon based on the critical points of Ne and Ar? (critical temperature (Ar)=150.9 K, critical pressure (Ar)=48.0 atm)

Answer 1

Explanation:

Since, it is given that critical temperature of Argon is 150.9 K and critical pressure of Argon is 48.0 atm.

It is known that gas phase of neon occurs at 50 K. As the boiling point of Ar is more than the boiling point of neon which means that there is strong intermolecular force of attraction between argon molecules as compared to neon molecules.

This is also because argon is larger in size. As a result, induced dipole-induced dipole forces leads to more strength in Ar as compared to Ne.