out of ammonia and dinitrogen which will have higher value of a and why
Answers
the van der Waal’s constants are meant to account for the volume of the actual molecules, b, and the strength of intermolecular interactions, a. Since nitrogen, N2 is the bigger of the two molecules I would suspect it to have the greater “b” Since ammonia, NH3, allows for relatively strong hydrogen bonding (between molecules ) while N2 only allows for relatively weak London dispersion forces/temporary dipole-dipole interactions, I would suspect ammonia would have the greater “a”
Answer: Ammonia has higher value of a than nitrogen.
Explanation: "a" refers to the vanderwaal's constant which signifies the inter molecular forces of attraction.
As ammonia molecules are bonded by strong hydrogen bonds, they have high inter molecular forces as compared to nitrogen which are bonded by weak vanderwaal forces.
Thus we can conclude that the value of "a" is greater for ammonia than nitrogen.