Oxygen chemistry question??? Kinda Tricky!!!?

Question

Oxygen is found in the atmosphere as a diatomic gas, O2
and ozone is found as O3

Here is the question i have, i didnt get this right on my ap chem test and i want to know how to do it

Use the principles of bonding and molecular structure to account for the fact the ozone has a higher boiling point than diatomic oxygen.

Answer 1

O2 is a diatomic molecule.

O3 is a heavier molecule, so you expect it to have a higher boiling point.

Also, if you use VSEPR for O3, you will see that it is bent and has a dipole moment. That is another way in which molecules can attract each other, raising the boiling point.

Answer 2

03 has a molecular structure that is angular with an angle of about 127 degrees between the first and third O, and the two bonds are indistinguishable. The electronic structure has the double bond on each side, so that there are two resonance forms. O3 has a greater molecular weight than O2 which would result in a higher BP. O2 is linear and paramagnetic. That is attracted by a magnetic field, which means it contains unpaired electrons in the diatomic molecule.these are distributed singly in the two pi anti bonding molecular orbitals. Because 02 has a single bond where 03 has the double, more energy is required to boil 03.