We have O2, H2, He, and HCl gases; which gas will behave LEAST ideally?

1 Answer
Jan 23, 2017

Clearly, hydrogen chloride behaves LEAST ideally..............

Explanation:

Ideality assumes negligible intermolecular interaction. However, hydrogen chloride gas, with δ+HClδ dipoles, has the possibility of intermolecular hydrogen bonding, which is a potent intermolecular force. This is reflected in the respective boiling points of the given gases, He, H2, O2, HCl, which are 4.2,20.2,90.2, and 188.1 K respectively.