Out of NH_3 and N_2, which one will have greater value of the van dar Waal's constant 'a'

Out of NH_3 and N_2, which one will have greater value of the van dar

1.	Out of NH_3 and N_2, which one will have greater value of the van dar Waal's constant 'a'
Answer» Solution :As `NH_3` is more easily LIQUIFIABLE ( due to hydrogen bonding), intermolecular forces of attration are stronger in `NH_3` than `N_2`. Hence `NH_3` will have greater VALUE of .a.. As `NH_3` molecule is larger in SIZE than `N_2`, `NH_3` will have greater value of .b..